The new version of laravel-admin is not in default integrated rich text editor, so document a given integrated approach several rich text editor
The rich text editor I tried it all can be installed into the extensions in addition to ueditor ...
However, these are all the default editor using base64 and text with images and pictures stored previously used independently to upload insert image links differently here need to set up a database for the field under LongText or MediumText
Then set the mysql max_allowed_packet large number of such 20M also php post data limits set larger post_max_size