I have found the problem.
1. One I’ve described in another thread regarding wrong array definition – “cap_docs” or something like that: It is an array of arrays and each sub-array has an extra “,” after the last item.
2. There is a problem in the Hebrew translation. Using “%S” instead “%s” and that causes problems. One big problem is that the capabilities in the plugin’s settings sections are not shown and therefore saves as they were unchecked checkboxes – making even the administrator permissionless.