A PHP Error was encountered Severity: 8192

v2.9.2 - Build Date: 20141004

Getting these 2 errors in the control panel whenever ‘submit’ is clicked (e.g. to save a change to an entry):

A PHP Error was encountered Severity: 8192

Message: Non-static method Campaigns_helper::arrayExtend() should not be called statically, assuming $this from incompatible context

Filename: campaigns/api.campaigns.php

Line Number: 278

A PHP Error was encountered Severity: 8192

Message: Non-static method Campaigns_helper::arrayExtend() should not be called statically, assuming $this from incompatible context

Filename: libraries/campaigns_helper.php

Line Number: 183

Any help on how to stop this please? It would be much appreciated!

Many thanks!