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Deprecated: PDO::prepare(): Passing null to parameter #1 ($query) of type string is deprecated in /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/lib/database.class.php on line 41

Fatal error: Uncaught ValueError: PDO::prepare(): Argument #1 ($query) cannot be empty in /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/lib/database.class.php:41 Stack trace: #0 /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/lib/database.class.php(41): PDO->prepare('') #1 /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/lib/courses2.class.php(170): Database->query(NULL) #2 /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/lib/courses2.class.php(39): Courses2->setContent(3, 'strakinstrument', 'teater-mellan-n...') #3 /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/index.php(99): Courses2->__construct(3, 'strakinstrument', 'teater-mellan-n...') #4 {main} thrown in /www/webvol38/yo/zeypdshhmecy5wl/laholmkulskol.se/public_html/lib/database.class.php on line 41