Assets and Users modules no loading on v8.6.1

I recently upgraded our system to v8.6.0 i suddenly realized the Assets and users module are not working. no item could display even after i upgraded to version V8.6.1
attached is my resent logs.
2020-10-08 13:04:32.450 ***** ERROR ***** [V8.6.1] Try to hack detected
2020-10-08 13:04:32.450 ***** ERROR ***** [V8.6.1] Source Code = checkValidAccessForUser() Reject for Asset - no access to screen 'Asset'
2020-10-08 13:04:32.451 ***** ERROR ***** [V8.6.1] QUERY_STRING = objectClass=Asset&objectType=&objectClient=&budgetParent=&objectElementable=
2020-10-08 13:04:32.451 ***** ERROR ***** [V8.6.1] REMOTE_ADDR = 105.244.100.11
2020-10-08 13:04:32.451 ***** ERROR ***** [V8.6.1] SCRIPT_FILENAME = /usr/www/users/caramzhmcm/projects.carampako.co.za/tool/jsonQuery.php
2020-10-08 13:04:32.452 ***** ERROR ***** [V8.6.1] REQUEST_URI = /tool/jsonQuery.php?objectClass=Asset&objectType=&objectClient=&budgetParent=&objectElementable=

sometimes it will just suddenly restart and asked me to login again but still no success across all browsers
Please assist

Nothing just after i upgraded, i started experiencing the asset module no loading content, no button active, if i try to click the other sub-menus under asset the system will restart or refresh and ask me to login again