Warning: htmlspecialchars() expects parameter 1 to be string, array given in /ho

Hi ALL! Please excuse me, but I am having trouble with this template and have NO IDEA what the issue is. I am getting several errors.

website: http://www.SchusterMD.com

Errors: Warning: htmlspecialchars() expects parameter 1 to be string, array given in /home/chustermd/public_html/wp-includes/formatting.php on line 3338

For this error, I have no clue as to what the issue is. I was having the Contact Form 7 crash my site and ever since it was disabled that plugin
those errors show up where text boxes were. Also, ARRAY is showing up EVERY WHERE and when I make a change to the page, the tabs info goes away and says ARRAY.

the next error

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 130968 bytes) in /home/chustermd/public_html/wp-content/themes/doctor2/ait-theme/@framework/libs/AitLess.inc on line 1285

For this I increased the size to 980M on the PHP.ini file and will still get this error if I make a change. But once I refresh, It will come back.

Any clue as to what the issues could be???