We have now opened a commercial services section here on the forum for registered users. If you have a Fabrik project that you wish to have someone work on for you, post it under Help Wanted. If you are an application developer and wish to earn some money helping others, post your details under Fabrik Application Developers.
Both of these are unmoderated. It will be up to both parties to work out the details and come to an agreement.
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
I have sent paid request PM help to @mediaateam and also submitted quote through https://fabrikar.com/quote-request for this issue last week, sadly there is no response from Robbie so far.
Anyone knows how to reach to Hugh for help.
The good news is, that project is allowing us to make many new changes and improvements to Fabrik.
It would be possible to finish implementing it, but not trivial.