Fatal error: Uncaught Error: Class 'block_base' not found in /home/junior47895/public_html/aulavirtual/AulaVirtual_22Apr/blocks/settings/block_settings.php:36 Stack trace: #0 {main} thrown in /home/junior47895/public_html/aulavirtual/AulaVirtual_22Apr/blocks/settings/block_settings.php on line 36