htmlspecialchars(): Argument #1 ($string) must be of type string, array given

4 weeks 1 day ago #13327 by OliverW
Hi,
I am using Joomla 4 and installed: 

1. plg_easycontentrestriction_v3.6.0.1
2. plg_kubikrubikproupdater_v4.0.0.1


Licence I got. 
After installing and enable the plugin I got the following message:

0 htmlspecialchars(): Argument #1 ($string) must be of type string, array given



BR Oliver
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