Hi guys, I'm getting these errors

-PHP Deprecated:  trim(): Passing null to parameter #1 ($string) of type string is deprecated in /oc-includes/osclass/model/Country.php on line 68
PHP Deprecated:  trim(): Passing null to parameter #1 ($string) of type string is deprecated in oc-includes/osclass/model/Region.php on line 111
PHP Deprecated:  trim(): Passing null to parameter #1 ($string) of type string is deprecated in oc-includes/osclass/model/City.php on line 182
 PHP Warning:  Undefined array key 114 in /oc-content/themes/patricia/main.php on line 290
PHP Warning:  Undefined array key 121 in /oc-content/themes/patricia/main.php on line 290
PHP Warning:  Undefined array key 124 in /oc-content/themes/patricia/main.php on line 290


I transferred my files from 1 hosting to another. Was prompted to install osclass again.

Permalinks give me errors too

Looks like some data issue.
Anyway you can fix first 3 errors by going to those files, find:
trim(
Replace with:
trim((string)