Every time I save a coupon I get an error message

Hi, I use child theme for Coupon theme made with boiler.
Suddenly I get this message every time I save/edit a Coupon.
Is there a way to fix this?
Message is:

Warning: Illegal string offset ‘width’ in /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php on line 195

Warning: Illegal string offset ‘height’ in /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php on line 196

Warning: Illegal string offset ‘width’ in /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php on line 197

Warning: Illegal string offset ‘height’ in /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php on line 197

Warning: Cannot modify header information – headers already sent by (output started at /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php:195) in /home2/jbsdata/public_html/prisjagarna/wp-admin/post.php on line 222

Warning: Cannot modify header information – headers already sent by (output started at /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php:195) in /home2/jbsdata/public_html/prisjagarna/wp-includes/pluggable.php on line 1251

Warning: Cannot modify header information – headers already sent by (output started at /home2/jbsdata/public_html/prisjagarna/wp-content/themes/CP9/framework/new_class/class_admin_design.php:195) in /home2/jbsdata/public_html/prisjagarna/wp-includes/pluggable.php on line 1254

Best Regards
Bjorn