css.php error message

[Larry@CRAWL]

I discovered an error message and I'm wondering if I should be concerned about it. If so, what would the remedy be? I just updated to version 4.2, and don't recall this message before the update. Thanks for any assistance.

[kh99]

According to this thread: https://www.vbulletin.com/forum/showthread.php/403495-Invalid-argument-in-line-451-of-css-php it's a known bug but shouldn't cause any problems.

[Larry@CRAWL]

Ah, thank you very much.