hi ineed halp i have a problem

i just install the ECSRO and then i have the ERRO 5 ok i read about it how to make it better i mean work so i came to open the PK2 bout i didnt open it i changed it some thing like a Notepad look how it looks
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how can i change it back????? becous when changed it it also changed somting als on the ECSRO folder

You just changed on how u can OPEN the file. I think its still *.pk2 file :/

no bputt stuff are not working gd oon my computer it want sh1t and stuff

name it media.pk2