Fatal error: Uncaught Error: Call to a member function prepare() on null in /var/www/html/watermark/GeneratorWatermark.php:93 Stack trace: #0 /var/www/html/watermark/GeneratorWatermark.php(55): GeneratorWatermark->setParams() #1 /var/www/html/watermark/index.php(36): GeneratorWatermark->generateImages() #2 {main} thrown in /var/www/html/watermark/GeneratorWatermark.php on line 93