Fatal error: Uncaught Error: Using $this when not in object context in /volume1/web/projects/spaceticker.app.src/panels/cms/020_contacts/absence/actions.php on line 5

Error: Using $this when not in object context in /volume1/web/projects/spaceticker.app.src/panels/cms/020_contacts/absence/actions.php on line 5

Call Stack:
    0.0001     360368   1. {main}() /volume1/web/projects/spaceticker.app.src/panels/cms/020_contacts/absence/actions.php:0