Hello. I just upgrade Joomla to last version and it recommend me use PHP 7 ( currently on 5.6). After I changed to php 7, I cannot go to CB (blank page), other extensions working fine. I contacted with hosting, they said I need to contact with developer or i need use different php for Community. I put back to PHP 5.6 and it is working OK. What is the problem, how can I fix it? I do not want to use different PHP for my different extensions. Thank you in advance. CB I put in main menu in my website.