Cant install MySQL addon cause missing repo or packages, please help

Ok, thank you, i have used guide you refered to and posted link

https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/How-I-got-apt-update-and-install-to-work-with-Debian-Jessie/td-p/2306772

Succesfully installed php, also mysql.. but now im fighting with the following.. its regarding PHPMyAdmin

root@NAS:/data/pictures# apt-get install /data/pictures/phpmyadminr6_4.0.4_all.deb --fix-missing
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'phpmyadminr6' instead of '/data/pictures/phpmyadminr6_4.0.4_all.deb'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 phpmyadminr6 : Depends: php5-mysql (>= 5.4.4-13)
                Depends: php5-mcrypt (>= 5.4.4-13) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
root@NAS:/data/pictures#