Error message when connecting

Sometimes when I try to connect (with no code changes), I getting this error filling my console windows :
   [Error] Unable to register tunnel. Perhaps service is down? : JSON::ParserError, 743: unexpected token at '<html><head><title>web.Server Traceback (most recent call last)</title></head><body><b>web
.Server Traceback (most recent call last):</b>

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<a href="#tbend">
<p class="error">&lt;type 'exceptions.Exception'&gt;: No port available</p>
</a><div class="stackTrace"><div class="firstFrame">
<div class="location">/usr/local/lib/python2.6/dist-packages/twisted/web/server.py, line 125 in <span class="function">process</span></div>
<div class="snippet">
<div class="snippetLine"><span class="lineno">123</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;try:</span></div>

<div class="snippetLine"><span class="lineno">124</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;resrc = self.site.getResourceFor(self)</span></div>

<div class="snippetHighlightLine"><span class="lineno">125</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;self.render(resrc)</span></div>

<div class="snippetLine"><span class="lineno">126</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;except:</span></div>
</div><div class="variables"><b>Self</b><table class="variables">
<tr class="varRow"><td class="varName">site</td><td class="varValue"><div class="instance"><span class="instanceName">twisted.web.server.Site instance @ 0xf546c8</span>
              <span class="instanceRepr">&lt;twisted.web.server.Site instance at 0xf546c8&gt;</span></div>
              </td></tr>
</table></div><div class="variables"><b>Locals</b><table class="variables">
<tr class="varRow"><td class="varName">resrc</td><td class="varValue"><div class="instance"><span class="instanceName">__main__.LocalTunnelReverseProxy instance @ 0x7f44d38bc0e0</span>
              <span class="instanceRepr">&lt;__main__.LocalTunnelReverseProxy instance at 0x7f44d38bc0e0&gt;</span></div>
              </td></tr>

<tr class="varRow"><td class="varName">self</td><td class="varValue"><div class="instance"><span class="instanceName">twisted.web.server.Request instance @ 0x3fb8ab8</span>
              <span class="instanceRepr">&lt;POST / HTTP/1.1&gt;</span></div>
              </td></tr>
</table></div></div><div class="frame">
<div class="location">/usr/local/lib/python2.6/dist-packages/twisted/web/server.py, line 132 in <span class="function">render</span></div>
<div class="snippet">
<div class="snippetLine"><span class="lineno">130</span><span class="code">&nbsp;&nbsp;def render(self, resrc):</span></div>

<div class="snippetLine"><span class="lineno">131</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;try:</span></div>

<div class="snippetHighlightLine"><span class="lineno">132</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;body = resrc.render(self)</span></div>

<div class="snippetLine"><span class="lineno">133</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;except UnsupportedMethod, e:</span></div>
</div><div class="variables"><b>Locals</b><table class="variables">
<tr class="varRow"><td class="varName">resrc</td><td class="varValue"><div class="instance"><span class="instanceName">__main__.LocalTunnelReverseProxy instance @ 0x7f44d38bc0e0</span>
              <span class="instanceRepr">&lt;__main__.LocalTunnelReverseProxy instance at 0x7f44d38bc0e0&gt;</span></div>
              </td></tr>

<tr class="varRow"><td class="varName">self</td><td class="varValue"><div class="instance"><span class="instanceName">twisted.web.server.Request instance @ 0x3fb8ab8</span>
              <span class="instanceRepr">&lt;POST / HTTP/1.1&gt;</span></div>
              </td></tr>
</table></div><div class="variables"><b>Globals</b><table class="variables">
<tr class="varRow"><td class="varName">UnsupportedMethod</td><td class="varValue"><code>&lt;class 'twisted.web.error.UnsupportedMethod'&gt;</code></td></tr>
</table></div></div><div class="frame">
<div class="location">server.py, line 86 in <span class="function">render</span></div>
<div class="snippet">
<div class="snippetLine"><span class="lineno">84</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;if host.startswith('open.'):</span></div>

<div class="snippetLine"><span class="lineno">85</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;request.setHeader('Content-Type', 'application/json')</span></div>

<div class="snippetHighlightLine"><span class="lineno">86</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return self.register_tunnel(superhost, request.args.get('key', [None])[0])</span>
</div>

<div class="snippetLine"><span class="lineno">87</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;else:</span></div>
</div><div class="variables"><b>Locals</b><table class="variables">
<tr class="varRow"><td class="varName">host</td><td class="varValue">'open.localtunnel.com'</td></tr>

<tr class="varRow"><td class="varName">request</td><td class="varValue"><div class="instance"><span class="instanceName">twisted.web.server.Request instance @ 0x3fb8ab8</span>
              <span class="instanceRepr">&lt;POST / HTTP/1.1&gt;</span></div>
              </td></tr>

<tr class="varRow"><td class="varName">superhost</td><td class="varValue">'localtunnel.com'</td></tr>

<tr class="varRow"><td class="varName">self</td><td class="varValue"><div class="instance"><span class="instanceName">__main__.LocalTunnelReverseProxy instance @ 0x7f44d38bc0e0</span>
              <span class="instanceRepr">&lt;__main__.LocalTunnelReverseProxy instance at 0x7f44d38bc0e0&gt;</span></div>
              </td></tr>
</table></div></div><div class="frame">
<div class="location">server.py, line 76 in <span class="function">register_tunnel</span></div>
<div class="snippet">
<div class="snippetLine"><span class="lineno">74</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;if key and not self.install_key(key): return simplejson.dumps(dict(error=&quot;Invalid key.&quot;))</s
pan></div>

<div class="snippetLine"><span class="lineno">75</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;name = self.find_tunnel_name()</span></div>

<div class="snippetHighlightLine"><span class="lineno">76</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;port = self.find_tunnel_port()</span></div>

<div class="snippetLine"><span class="lineno">77</span><span class="code">&nbsp;&nbsp;&nbsp;&nbsp;self.tunnels[name] = port</span></div>
</div><div class="variables"><b>Self</b><table class="variables">
<tr class="varRow"><td class="varName">tunnels</td><td class="varValue"><div class="dict"><span class="heading">Dictionary instance @ 0xf03500</span><table class="dict"><tr><td class="dictKey">'4iw8'<
/td><td class="dictValue"><code>32006</code></td></tr><tr><td class="dictKey">'4iw9'</td><td class="dictValue"><code>32010</code></td></tr><tr><td class="dictKey">'4kqp'</td><td class="dictValue"><cod
e>32002</code></td></tr><tr><td class="dictKey">'4v9d'</td><td class="dictValue"><code>32009</code></td></tr><tr><td class="dictKey">'4kqr'</td><td class="dictValue"><code>32017</code></td></tr><tr><t
d class="dictKey">'4kqs'</td><td class="dictValue"><code>32006</code></td></tr><tr><td class="dictKey">'4kqt'</td><td class="dictValue"><code>32011</code></td></tr><tr><td class="dictKey">'4kqw'</td><
td class="dictValue"><code>32006</code></td></tr><tr><td class="dictKey">'3ex2'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'4xee'</td><td class="dictValue"><code>320
08</code></td></tr><tr><td class="dictKey">'4kqc'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'4kqg'</td><td class="dictValue"><code>32002</code></td></tr><tr><td cla
ss="dictKey">'48zf'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'3ky9'</td><td class="dictValue"><code>32004</code></td></tr><tr><td class="dictKey">'3eyf'</td><td cl
ass="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'5982'</td><td class="dictValue"><code>32019</code></td></tr><tr><td class="dictKey">'5983'</td><td class="dictValue"><code>32019</c
ode></td></tr><tr><td class="dictKey">'48zk'</td><td class="dictValue"><code>32009</code></td></tr><tr><td class="dictKey">'59mv'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="d
ictKey">'48zv'</td><td class="dictValue"><code>32016</code></td></tr><tr><td class="dictKey">'59mh'</td><td class="dictValue"><code>32011</code></td></tr><tr><td class="dictKey">'48zs'</td><td class="
dictValue"><code>32006</code></td></tr><tr><td class="dictKey">'48zp'</td><td class="dictValue"><code>32008</code></td></tr><tr><td class="dictKey">'59mn'</td><td class="dictValue"><code>32007</code><
/td></tr><tr><td class="dictKey">'4yv5'</td><td class="dictValue"><code>32015</code></td></tr><tr><td class="dictKey">'59mg'</td><td class="dictValue"><code>32019</code></td></tr><tr><td class="dictKe
y">'3bme'</td><td class="dictValue"><code>32009</code></td></tr><tr><td class="dictKey">'4g3u'</td><td class="dictValue"><code>32009</code></td></tr><tr><td class="dictKey">'4kq2'</td><td class="dictV
alue"><code>32007</code></td></tr><tr><td class="dictKey">'3zsh'</td><td class="dictValue"><code>32001</code></td></tr><tr><td class="dictKey">'4iwn'</td><td class="dictValue"><code>32007</code></td><
/tr><tr><td class="dictKey">'4yiu'</td><td class="dictValue"><code>32016</code></td></tr><tr><td class="dictKey">'4yvn'</td><td class="dictValue"><code>32008</code></td></tr><tr><td class="dictKey">'3
ew6'</td><td class="dictValue"><code>32004</code></td></tr><tr><td class="dictKey">'3ngd'</td><td class="dictValue"><code>32012</code></td></tr><tr><td class="dictKey">'4yvi'</td><td class="dictValue"
><code>32008</code></td></tr><tr><td class="dictKey">'598r'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'535a'</td><td class="dictValue"><code>32017</code></td></tr><
tr><td class="dictKey">'598q'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'4yvb'</td><td class="dictValue"><code>32009</code></td></tr><tr><td class="dictKey">'4yva'<
/td><td class="dictValue"><code>32016</code></td></tr><tr><td class="dictKey">'48z7'</td><td class="dictValue"><code>32006</code></td></tr><tr><td class="dictKey">'598i'</td><td class="dictValue"><cod
e>32026</code></td></tr><tr><td class="dictKey">'48z2'</td><td class="dictValue"><code>32002</code></td></tr><tr><td class="dictKey">'3ew3'</td><td class="dictValue"><code>32008</code></td></tr><tr><t
d class="dictKey">'4yvy'</td><td class="dictValue"><code>32017</code></td></tr><tr><td class="dictKey">'598f'</td><td class="dictValue"><code>32004</code></td></tr><tr><td class="dictKey">'598g'</td><
td class="dictValue"><code>32014</code></td></tr><tr><td class="dictKey">'47g5'</td><td class="dictValue"><code>32026</code></td></tr><tr><td class="dictKey">'3ngi'</td><td class="dictValue"><code>320
07</code></td></tr><tr><td class="dictKey">'42cx'</td><td class="dictValue"><code>32009</code></td></tr><tr><td class="dictKey">'3zsf'</td><td class="dictValue"><code>32007</code></td></tr><tr><td cla
ss="dictKey">'42ct'</td><td class="dictValue"><code>32026</code></td></tr><tr><td class="dictKey">'42cq'</td><td class="dictValue"><code>32000</code></td></tr><tr><td class="dictKey">'42cp'</td><td cl
ass="dictValue"><code>32010</code></td></tr><tr><td class="dictKey">'42ch'</td><td class="dictValue"><code>32015</code></td></tr><tr><td class="dictKey">'3fmp'</td><td class="dictValue"><code>32005</c
ode></td></tr><tr><td class="dictKey">'3eyj'</td><td class="dictValue"><code>32002</code></td></tr><tr><td class="dictKey">'4eke'</td><td class="dictValue"><code>32014</code></td></tr><tr><td class="d
ictKey">'4saf'</td>
and continues ...
progrium / localtunnel

Error message when connecting #53
