You did not mention anything about what version you are using.
Also check all of your logs.
Seems the error is concerning a wrong PHP version.
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[01-Apr-2020 15:02:49 UTC] PHP Parse error: syntax error, unexpected '?', expecting variable (T_VARIABLE) in /home/aigbohayche/hayche-dashboard/vendor/zendframework/zend-diactoros/src/functions/marshal_uri_from_sapi.php on line 83
please i need help urgently i have changed the version of my cpanel to 7.0 yet am still getting the error
See if the hosting company can put a higher version on there.
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