請問我的網站主題是ja_megastore - Default然後是T3 Framework框架，這個是可以安裝的嗎?要如何安裝?
因為之前不小心安裝到T4的頁面產生器，然後我的後台就變500這個錯誤碼，後來有救回來，只是我怕我又安裝到跟上次一樣，所以想問問各位大家有沒有可以教學的!!
My website theme is "ja_megastore - Default" and it's based on the T3 Framework. Is this theme installable? How can I install it? Previously, I accidentally installed the T4 page builder, and then my backend showed error code 500. I managed to recover it, but I'm worried that I might install something similar again. So, I was wondering if anyone could provide a tutorial or some guidance on how to do it correctly!