Today I tried to upgrade my ojs installation from 3.1.1-4 to 3.1.2 but when I hit the upgrade button through the web installer, I instantly get internal server error (500) and then I tried to manually upgrade the database through tools/upgrade.php script but I receive “Your server’s php version is not supported by this software”. Available versions of php are 5.6.3 and 7.2.7 and upgradation is failing with both of them. I am receiving this error for the first time. Do not know what to change.
I am using IIS. Please if someone can help me to figure this weird issue out.
Thanks in advance.