Cannot add or delete bookmarks in Safari
MacBook Pro, macOS Mojave (10.14)
Try opening the Bookmarks Sidebar and look for a Bookmarks Menu folder. See if the Chrome Bookmarks are there. If so, Safari/File/Export Bookmarks and save them to your Desktop. Then control - click on the Chrome folder and select Delete. Quit/reopen Safari and test. If everything is normal, delete the file from your Desktop. If there are problems, Safari/File/Import From and select the file on your Desktop. Return it to the Bookmarks Menu folder.
Try opening the Bookmarks Sidebar and look for a Bookmarks Menu folder. See if the Chrome Bookmarks are there. If so, Safari/File/Export Bookmarks and save them to your Desktop. Then control - click on the Chrome folder and select Delete. Quit/reopen Safari and test. If everything is normal, delete the file from your Desktop. If there are problems, Safari/File/Import From and select the file on your Desktop. Return it to the Bookmarks Menu folder.
Cannot add or delete bookmarks in Safari