PHP error when applying policy

[scrensen]

Hi all,

I've created a policy and when tying to save it I get a PHP error. See screenshots attached.

I haven't done anything fancy, if even possible here. Just selected a few rules and the actions and that's about it.

Anyone here an idea of what the cause could be and how to solve it?

Thanks in advance!

P.s. Running OPNsense 21.1.5

[scrensen]

Seems downloading rules helps 

Still not a very friendly error to throw, but at least I got it working