Here is the warning in my logs:

Emplacement http://toto.com/admin/structure/data/create
Référent http://toto.com/admin/structure/data/create
Message Warning : htmlspecialchars(): Invalid multibyte sequence in argument dans check_plain() (ligne 1572 dans /var/www/toto.com/includes/bootstrap.inc).

Comments

naxoc’s picture

naxoc commented

Can this error still be reproduced? Is it a custom or contrib module that gives you the "admin/structure/data/create" url?

naxoc’s picture

naxoc commented
Status: Active » Postponed (maintainer needs more info)
droplet’s picture

droplet commented
Status: Postponed (maintainer needs more info) » Closed (duplicate)

see #393538: Document that check_plain() can issue PHP messages on invalid UTF-8 input