Clicking 'Certify' failed

When I try to certify a account (which is already member or not), it fails with message : 'Document has unkown fields or wrong line ending format'

Version : 1.2.2 (using g1-test.duniter.fr)

Edited by David Chazalviel
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information