Version 1.5.0-4 of mobyle-tutorials is marked for autoremoval from testing on Thu 28 Mar 2019. It depends (transitively) on t-coffee, affected by #922149. You should try to prevent the removal by fixing these RC bugs.
Last update: 2019-02-23
Standards version of the package is outdated.
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.3.0 instead of