Hi, I've spent hours reading and following messages similar to my issue in this forum to no avail. I'm using the most recent version of b2evolution on my website, 5.0.6, and a fairly new version of PHP, 5.3.27. All of a sudden, last Sunday when I woke up, I started getting the error listed above in the title, and I could not edit posts (wouldn't let me save anything). Most of my widgets completely disappeared off my site, with the exception of some plain text ones like Recent Comments. I noticed the posts had all these \\\ added in the beginning where the images are supposed to be.
I've tried every modification I've read about with _misc.funcs.php and more. Various modifications to htmlspecialchars within that file. I upgraded the version I had of b2evolution to the most recent one. I changed the character set to utf8 in locales.php. I've played around with .htaccess making various suggested changes. I've disabled the plugins folder and renamed TinyMCE and Captcha. And more....
My gut instinct tells me it's either something I need to change in _misc.funcs.php, something related to foreach (), or, the hosting provider needs to tweak something in their version of PHP (I suspect if they upgraded to a newer version it would fix the problem). I suspect the problem either developed because 1) I added a lot of code from statcounter.com right before it happened, or 2) the hosting provider must have just upgraded PHP Saturday overnight.
My site is intellectualconservative.com. Any ideas GREATLY appreciated.