Hello. I just upgraded to Joomla 4 and got this error. What should I do?

Warning: foreach() argument must be of type array|object, string given in /srv/disk5/3969397/www/http://tiediknot.com/modules/mod_j51layerslideshow/tmpl/default.php on line136


Warning
: foreach() argument must be of type array|object, string given in
/srv/disk5/3969397/www/http://tiediknot.com/modules/mod_j51layerslideshow/tmpl/default.php
on line
188

I also am getting this error message:

Warning: foreach() argument must be of type array|object, string given in /srv/disk5/3969397/www/http://tiediknot.com/templates/j51_ashley/php/layouts/social_icons.php on line 48