Save failed with the following error: The content exceed

Hi.
Thank you for contacting us.
We have checked your site and found the issue when you have a lot image in the images folder. The image info will save to the params field on the #__modules tables.
If you don't use the source from the image, please select another folder as the Video folder. prnt.sc/MMsfo7MQuRvX , then select the Joomla Content again. That will help you fix the issue.
Please recheck it.
Regards.