Deprecated: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /home1/destissp/public_html/thumbnail/phpthumb.functions.php on line 742

Deprecated: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /home1/destissp/public_html/thumbnail/phpthumb.functions.php on line 742

Deprecated: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /home1/destissp/public_html/thumbnail/phpthumb.functions.php on line 742
**Headers already sent in file "/home1/destissp/public_html/thumbnail/phpthumb.functions.php" on line "742", dumping error message as text:**

phpThumb() v1.7.16-202008101454
http://phpthumb.sourceforge.net

Error messages disabled.

edit phpThumb.config.php and (temporarily) set
$PHPTHUMB_CONFIG['disable_debug'] = false;
to view the details of this error