Thank you so much for using our theme Corporate Plus Pro. We checked our demo site and it is working fine. Have you used the Acme Fix Image plugin to fix the image size as mentioned on the documentation ? Please follow the proper documentation and try to fix the problem. https://doc.acmethemes.com/corporate-plus-pro
Have you changed any line of code on theme? Let us know if you changed any.Or this may arise due to plugin conflicts. So, please check by uninstalling unwanted plugins too.