Hello,
On my debian stretch I have upgraded php5 to php7.0 (necessary for using Nextcloud) but now Roundcube don't work (blank page).
When I downgrade to php5 Roundcube works but Nextcloud no (require at least php7.0).
So, I don't knwo how to use php5 for Roundcube AND php7 for Nextcloud.
Thanks.