I'm using locally Civicrm 4.7.25 on Joomla 3.8.1 and starting from 4.7.22 (although I am not sure it's a consequence of an update) whenever I try to access a "New mailing" menu I get a blank page: http://awesomescreenshot.com/0706dy7a64 and this notice: Notice: Undefined offset: 0 in /share/CACHEDEV1_DATA/Web/civi917/administrator/components/com_civicrm/civicrm/CRM/Mailing/Info.php on line 82 Now I don't know how to solve this issue, anyone can help me please?
Other useful info: phpversion: 5.6.31 dbversion: 5.5.57-MariaDB server: Apache on linux