I purchased adobe indesign cs5 ME and Tasmeem 5 a few years ago from you. I have upgraded my mac to OS X EI Cpitan version 10.11 on en SSD and the Tasmeem plug in can not install. I don't receive any error but it does not comes in the menu of indesign after the installation completes. Also when I quit Indesign, I receive an error that the insigne is unexpectedly quit. plz contact firstname.lastname@example.org
Although it doesn't necessarily mean it will not work, CS5 is not supported on El Capitan (and an in-place upgrade will cause more trouble than a clean installation). You should contact the vendor for questions about Tasmeem 5.