RSS feed no longer working

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Hi, on my site I have an RSS feed set up which was previously working, but now is not. I get the following error message:
Declaration of Concrete\Controller\Feed::get($identifier) should be compatible with Concrete\Core\Controller\AbstractController::get($key = NULL, $defaultValue = NULL)
I am still running concrete5 v. 5.7.5.6 on this site, just haven't had time to update it. You can view it with the block that includes the RSS feed athttp://newmexico.imagepast.com/collections... . Is there any way to fix the feed, or will I have to upgrade to the current version of concrete5 to get it to work? Thanks for any help.

OddSpoon
 
hutman replied on at Permalink Reply
hutman
Did your PHP version by any chance change? This looks like one of the issues that comes with upgrading to PHP 7 without a compatible C5 version.
OddSpoon replied on at Permalink Reply
OddSpoon
Aha, that sounds like it could be it, I will check it out. Thank you!