Unexpected error; contact the FLE with the following information: 200

[eahmedshendy]

Hi Everyone,

I'm trying to use ka-lite tool on Linux Mint 17. I've downloaded the software from Github, then installed it successfully. I started to run it from terminal ./start.sh

then open it from browser http://127.0.0.1:8008. after registration, By clicking on Video section, this problem appeared to me:

Unexpected error; contact the FLE with the following information: 200
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We're not really sure about that figure, but it sounds authoritative. Anyway, unless you've watched this tutorial, you're really in no position to argue otherwise.\n\nAs you'll see \"percent\" literally means \"per cent\" or \"per hundred\". It's a pseudo-decimally thing that our society likes to use even though decimals or fractions alone would have done the trick. Either way, we're 100% sure you'll find this useful.", "key": "percent_tutorial", "children": [{"size": 2.628355026245117, "addClass": "unstarted", "key": "Lvr2YsxG10o", "tooltip": "Describing the Meaning of Percent", "title": "Describing the meaning of percent"}, {"size": 2.748745918273926, "addClass": "unstarted", "key": "MokI3Fi8jpc", "tooltip": "Describing the Meaning of Percent 2", "title": "Describing the meaning of percent 2"}, {"size": 2.808285713195801, "addClass": "unstarted", "key": "-gB1y-PMWfs", "tooltip": "Representing a number as a decimal, percent, and fraction", "title": "Representing a number as a decimal, percent, and fraction"}, {"size": 1.6601076126098633, "addClass": "unstarted", "key": "5z568fLBQyQ", "tooltip": "Converting decimals to percents (ex 1)", "title": "Converting decimals to percents (ex 1)"}, {"size": 1.0577220916748047, "addClass": "unstarted", "key": "3_caioiRu5I", "tooltip": "Converting decimals to percents (ex 2)", "title": "Converting decimals to percents (ex 2)"}, {"size": 0.6022930145263672, "addClass": "unstarted", "key": "MkpbtCRwcCE", "tooltip": "Converting percents to decimals (ex 1)", "title": "Converting percents to decimals (ex 1)"}, {"size": 0.5136146545410156, "addClass": "unstarted", "key": "T4JKO0OGjpQ", "tooltip": "Converting percents to decimals (ex 2)", "title": "Converting percents to decimals (ex 2)"}, {"size": 1.9544754028320312, "addClass": "unstarted", "key": "FaDtge_vkbg", "tooltip": "None", "title": "Finding percentages example"}, {"size": 1.8341598510742188, "addClass": "unstarted", "key": "AjYil74WrVo", "tooltip": "None", "title": "Percent word problems"}, {"size": 1.1865301132202148, "addClass": "unstarted", "key": "-lUEWEEpmIo", "tooltip": "None", "title": "Taking a percentage example"}, {"size": 1.9661865234375, "addClass": "unstarted", "key": "JaScdH47PYg", "tooltip": "Identifying Percent Amount and Base", "title": "Identifying percent amount and base"}, {"size": 4.106603622436523, "addClass": "unstarted", "key": "Hkwfibux88s", "tooltip": "Representing a number as a decimal, percent, and fraction 2", "title": "Representing a number as a decimal, percent, and fraction 2"}, {"size": 4.183757781982422, "addClass": "unstarted", "key": "Llt-KkHugRQ", "tooltip": "Ordering numbers expressed as decimals, fractions, and percentages", "title": "Ordering numeric expressions"}], "expand": false, "addClass": "unstarted"}, {"title": "Percent word problems", "isFolder": true, "tooltip": "Whether you're calculating a tip at your favorite restaurant or figuring out how many decades you'll be paying your student debt because of the interest, percents will show up again and again and again in your life. 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Why keep track of 2.345609 when you only need 2.35? \n\nThis tutorial will get you comfortable with sometimes being a little rough with numbers. By being able to round and estimate them, it'll only add one more tool to your toolkit.", "key": "decimal_rounding_estimation", "children": [{"size": 1.012765884399414, "addClass": "unstarted", "key": "_MIn3zFkEcc", "tooltip": "Rounding Decimals", "title": "Rounding decimals"}, {"size": 3.0239267349243164, "addClass": "unstarted", "key": "BkwI6Uu0vi4", "tooltip": "Estimation with Decimals", "title": "Estimation with decimals"}], "expand": false, "addClass": "unstarted"}, {"title": "Significant figures", "isFolder": true, "tooltip": "There is a strong temptation in life to appear precise, even when you are aren't accurate. If you precisely measure one dimension of a carpet to be 3.256 meters and eyeball the other dimensional to be \"roughly 2 meters\", can you really claim that the area is 6.512 square meters (3.256 x 2)? 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[object Object]

So how can I solve this problem ?

[aronasorman]

Hi @eahmedshendy, if you go to the very end of the error it looks like it's returning a P/1.1 502 Bad Gateway ERROR

According to this site that error is returned when the server is overloaded. Are there any other PCs accessing the server? Or maybe the server might be using some outdated hardware? KA Lite isn't that heavy though, so it should be able to handle 100s of clients on any off-the-shelf hardware.

[eahmedshendy]

No, I'm trying this for the first time. I installed it in my laptop, only for me.