Lay the moped on its left side (use a cardboard mat to prevent damage to the moped paint) and spray some DW 40 inside the flywheel hole.
Leave the WD 40 to act for one night and the next day try to screw the puller to the last threads at the bottom of the flywheel hole.
If the flywheel has no more threads, then it is "dead" and its extraction will be even more difficult.
If you have experience with welding, you can weld a nut at one end of a tube of appropriate size, and then weld the other end to the flywheel hole.
Make sure you do not overheat the crankshaft.
Screw a suitable screw to the nut welded to the pipe, cross your fingers, and extract the flywheel with this self-built "puller".
If you need, I've for sale a flywheel for your Bravo.