Hi, Im using Moodle 2.5.5 and i tried to add a plugins namely: Block: moodletxt - bbconnecttxt.com SMS/Text Two-Way Messaging Module (Version 3.0.6) for sms sending purposes, which i've downloaded from your site...

The block that i was trying to install seemed to have no error during the validation test so it clicked on "Install Add-on". After that, there's this error that comes up: 'Coding error detected, it must be fixed by a programmer: Trying to reference an unknown block region side-post' which i cannot get. Everytime i tried to go onto another page of my moodle, that error still comes up...

Anyone or anything that can help me get rid with this error and that can help me send sms from my moodle to all registered users??

Or any other options to accomplish the abovementioned error ?

Your answer/help is very much appreciated. Thank you!