Either wait for about a minute or two after it freezes when talking to Laventon or try the pkhex fix I posted a while back. If you can't get it working PM me your save and I'll see if I can fix it.
The bin file that you export from pkhex is the file you edit. When you open it in the hex editor select all and replace with 00, save the file and then import it back into KCaptureRecords. Are you playing on switch or emulator?
I had the same problem and fixed it using pkhex. After opening your save in pkhex go to the sav tab and click on block data, in the drop down menu for block key click on KCaptureRecords and then export current block. Save the bin file somewhere you'll remember and open it using a hex editor...
I used the encounter code and caught a yellow alpha Kleavor but now whenever I try to go back to Jubilife, when I talk to Laventon the game locks up and crashes. Is there any fix for this?
For me after the wurmple evolved I went out and explored for about 10 min and when I went back to jubilife the request popped up on the board in laventons room
Nevermind. Found it. Talk to Beauregard outside the galaxy building and wurmple will evolve then after going exploring for a while it'll pop up on the request board.