[SOLVED] General error 2006 MySql has fone away Error in log file

Babynus

I have many errors in the log file and they all relate to one error. I can execute the sql statment without any errors.

2016-07-10 07:25:11.759 ***** ERROR ***** Exception-[HY000] SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
2016-07-10 07:25:11.759 ***** ERROR ***** For query : select * from indicatorvalue where idle='0' and ( ( warningTargetDateTime<='2016-07-10 07:25:11' and warningSent='0') or ( alertTargetDateTime<='2016-07-10 07:25:11' and alertSent='0'))
2016-07-10 07:25:11.759 ***** ERROR ***** Strack trace :
2016-07-10 07:25:11.759 ***** ERROR ***** #0 Sql->query called at [/home/xxx/public_html/pm/model/persistence/SqlElement.php:1740]
2016-07-10 07:25:11.759 ***** ERROR ***** #1 SqlElement->getSqlElementsFromCriteria called at [/home/xxx/public_html/pm/model/Cron.php:341]
2016-07-10 07:25:11.759 ***** ERROR ***** #2 Cron->checkDates called at [/home/xxx/public_html/pm/model/Cron.php:295]
2016-07-10 07:25:11.760 ***** ERROR ***** #3 Cron->run called at [/home/xxx/public_html/pm/model/Cron.php:256]
2016-07-10 07:25:11.760 ***** ERROR ***** #4 Cron->relaunch called at [/home/xxxx/public_html/pm/tool/cronRelaunch.php:30]
2016-07-10 07:26:11.761 ***** ERROR ***** Exception-[HY000] SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
2016-07-10 07:26:11.761 ***** ERROR ***** For query : select * from indicatorvalue where idle='0' and ( ( warningTargetDateTime<='2016-07-10 07:26:11' and warningSent='0') or ( alertTargetDateTime<='2016-07-10 07:26:11' and alertSent='0'))
2016-07-10 07:26:11.761 ***** ERROR ***** Strack trace :
2016-07-10 07:26:11.761 ***** ERROR ***** #0 Sql->query called at [/home/xxxx/public_html/pm/model/persistence/SqlElement.php:1740]
2016-07-10 07:26:11.761 ***** ERROR ***** #1 SqlElement->getSqlElementsFromCriteria called at [/home/xxxx/public_html/pm/model/Cron.php:341]
2016-07-10 07:26:11.761 ***** ERROR ***** #2 Cron->checkDates called at [/home/xxxx/public_html/pm/model/Cron.php:295]
2016-07-10 07:26:11.761 ***** ERROR ***** #3 Cron->run called at [/home/xxxx/public_html/pm/model/Cron.php:256]
2016-07-10 07:26:11.761 ***** ERROR ***** #4 Cron->relaunch called at [/home/xxxx/public_html/pm/tool/cronRelaunch.php:30]
2016-07-10 07:27:11.762 ***** ERROR ***** Exception-[HY000] SQLSTATE[HY000]: General error: 2006 MySQL server has gone away

I have Stopped and Started the cron again but the problem remains.
I have tried looking at the configuration but not sure where to look for what is causing the error.
If I execute the SQL statement in PHPadmin on the table it returns 0 rows but no error.
select * from indicatorvalue where idle='0' and ( ( warningTargetDateTime<='2016-07-10 07:26:11' and warningSent='0') or ( alertTargetDateTime<='2016-07-10 07:26:11' and alertSent='0'))

It happens all the time. It seems like every time the cron runs. I have attached the log file

Hi Babynus
PHP ver on server 5.5.36
Did the following test:
Installed Xampp server on my PC. PPH 5.6.3
Copied the installed software from the server to my PC
Dumped the Mysql DB and imported to Xampp on my PC

All is working fine and the log file does not reflect any errors as above.
Any suggestions where I can start looking. Perhaps the Cron needs special access to a folder and does not have it on the web server.

Nico