Why is Cacti showing an empty graph???

[hasnaouikhouloud]

i have created a graph in Cacti, It is showing device up, It is creating rrd file. (RRDTool says OK). -) Showing the graph, but it's empty.

and when I turn on data source info mode of graphes I get : -value NAN
and cacti log show: 05/02/2020 14:09:54 - DBCALL ERROR: SQL Assoc Failed!, Error: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'rows FROM data_source_profiles AS dsp INNER JOIN data_source_profiles_cf AS ds' at line 1 05/02/2020 14:09:54 - DBCALL ERROR: SQL Assoc Failed!, Error:1064, SQL:'SELECT dspc.consolidation_function_id AS cf, dsp.x_files_factor AS xff, dspr.steps AS steps, dspr.rows AS rows FROM data_source_profiles AS dsp INNER JOIN data_source_profiles_cf AS dspc ON dsp.id=dspc.data_source_profile_id INNER JOIN data_source_profiles_rra AS dspr ON dsp.id=dspr.data_source_profile_id WHERE dsp.id = ? ORDER BY dspc.consolidation_function_id, dspr.steps' 05/02/2020 14:09:54 - CMDPHP PHP ERROR WARNING Backtrace: (/data_sources.php: 77 ds_edit)(/data_sources.php: 1062 rrdtool_function_info)(/lib/rrd.php: 2395 sizeof)(CactiErrorHandler)(/lib/functions.php: 4585 cacti_debug_backtrace) 05/02/2020 14:09:54 - ERROR PHP WARNING: sizeof(): Parameter must be an array or an object that implements Countable in file: /usr/share/cacti/site/lib/rrd.php on line: 2395

Tuchnical support: Cacti Version 1.1.38 PHP Version 7.2.24 ubuntu 18.04.4 MariaDB 10.4.12

[TheWitness]

The only way this will be fixed is by updating to 1.2.12. It's fixed there.