Steps to reproduce the issue

1. Create and save the link in any language (for example: en-GB).
2. After that, you will not see button Associations, but it should be.

Expected result

Actual result

System information (as much as possible)

Joomla 3.9.15, Web Links 3.7.0, PHP 7.3.9, MySQL 5.5.5-10.3.13-MariaDB-log

Additional comments

See also: #418