For running J!5.1 you must https://fabrikar.com/forums/index.php?wiki/update-from-github/ or include the new file manually https://fabrikar.com/forums/index.php?threads/joomla-5-1-and-fabrik-cannot-find-files-error.54473/post-285151 See also Announcements
See Announcement
We have resolved the issue with the J! updater and this will be fixed in the next release.
This does not work since the text of the button is generated from the label...Just leave the label blank.
-- hugh
Thanks! This worked. Now to get my button javascript to actually work...You can hide it with CSS, there's an element class in the parent div.
.fb_el_your-full- element-name_ro .fabrikLabel {display:none;} (or visible:hidden; if you want to keep the space)