[TYPO3] sr_feuser_register creat and edit not working

[harp]

Hello list,

i´ve got problems with my feuser-register extension. the registration- and
edit-process is not working. after filling out the fields i hit the
submitt-button, something is loading but afterwards im still on the
registration or edit-profile-page and no feuser was created or profile
updatet. strange enough, but if i create a fe-user in the backend, i´m able
to delete the account from the frontend.

Can somebody help plz.

Harp