If I try to show a Alert (F7), no matter what I try, I just get this error:
Traceback (most recent call last):
File "openlp\plugins\alerts\forms\alertform.py", line 81, in on_display_clicked
File "openlp\plugins\alerts\forms\alertform.py", line 198, in trigger_alert
File "openlp\plugins\alerts\lib\alertsmanager.py", line 79, in display_alert
File "openlp\core\display\window.py", line 550, in alert
AttributeError: 'DisplayWindow' object has no attribute 'run_javascript'
