Dear Team, I have Upgraded our sugar CRM 11.03 to 12.00 & we are Getting CRM after login screen ( HTTP: 500 Internal Server Error Unknown error. ) Please help what can i do for this issue

Hi, I'm customizing a dashlet, but when I try to receive data from SugarCRM on demand using filter API. But, when setting max num filter to -1 (no data limit), I get 500 (Internal Server Error). I'm trying to bring over 8600 records. If I put 8000 instead…