well its so strange to me too, i mean i really value this plugin and i love it! but its causing a search error in my products search, i have disabled every other plugin and it seems like this plugin is for sure causing it, however i`m using 3.1.22 version of it, i cant really give you an access but this error appears in my plugins page, im guessing the code is to convert data to arrays, maybe the code needs some adjustments to work better. please let me know what can i provide you with.
although when i used to have the unlicensed version, i didn’t receive this error.
thank you