Customizer Not loading: sanitize-functions.php Line 102 & 123

Hi The customizer of the free devin theme is not loading anymore. This error message is displayed: Warning: in_array() expects parameter 2 to be array, string given in /home/.sites/639/site1066696/web/wp-content/themes/divin/inc/customizer/sanitize-functions.php on line 102 Warning: array_intersect(): Argument #1 is not an array in /home/.sites/639/site1066696/web/wp-content/themes/divin/inc/customizer/sanitize-functions.php on line 123 Warning: count(): Parameter must be an array or an object that implements Countable in /home/.sites/639/site1066696/web/wp-content/themes/divin/inc/customizer/sanitize-functions.php on line 123 Warning: count(): Parameter must be an array or an object that implements Countable in /home/.sites/639/site1066696/web/wp-content/themes/divin/inc/customizer/sanitize- Can you help finding a solution?