unable to start service desk

unable to start service desk

originally i had an issue where the import from active directory was not working. I found on the support site to edit file general-securityaccess and add null to the line
after restarting the service desk it no longer worked. I put the file back to original settings and same issue

i then thought by upgrading to the latest version might resolve the issue but i still have the same issue

please could someone help? i have tried all the support ideas i can find on here and its not working.
i have tried running the support desk with the .bat but it wont work and i am now unsure how to access my helpdesk and issues.

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