[solved ] Issue - system works slowly ...

[rslemer]

My users dashboard is very slowly today

I found this message in httpd log

Wed Aug 14 09:42:24 2019] [error] [client 192.168.1.103] PHP Fatal error:  Uncaught WebServiceException: Erro na base de dados ao executar a opera\xc3\xa7\xc3\xa3o solicitada in /usr/share/coreBOS/corebos-master/include/Webservices/VtigerModuleOperation.php:61
Stack trace:\n#0 /usr/share/coreBOS/corebos-master/include/Webservices/Retrieve.php(59): VtigerModuleOperation->retrieve('39x978838')
#1 /usr/share/coreBOS/corebos-master/modules/com_vtiger_workflow/VTEntityCache.inc(25): vtws_retrieve('39x978838', Object(Users))
#2 /usr/share/coreBOS/corebos-master/modules/com_vtiger_workflow/VTEntityCache.inc(116): VTWorkflowEntity->__construct(Object(Users), '39x978838', false)
#3 /usr/share/coreBOS/corebos-master/modules/com_vtiger_workflow/VTEventHandler.inc(42): VTEntityCache->forId('39x978838')
#4 /usr/share/coreBOS/corebos-master/include/events/VTEventTrigger.inc(146): VTWorkflowEventHandler->handleEvent('vtiger.entity.a...', Object(VTEntityData))
#5 /usr/share/coreBOS/corebos-master/include/events/VTEventsManager.inc(114): VTEventTrigger->trigger(Object(VTEntityData))
#6 /usr/share/coreBOS/corebos in /usr/share/coreBOS/corebos-master/include/Webservices/VtigerModuleOperation.php on line 61
referer: http://xxx:5000/index.php?module=cbCalendar&action=ListView&viewname=13

This means a error in filter or in workflow?

I not change anything in workflow, but user changes a filter yesterday ...

I will try ask what kind of changes user did ...

How I can tracked and solved that?