Sometimes, the XBMC cache can get full of conflicting references and can cause script errors. If you keep getting script errors and you have tried the re-install of the add-on, a cache clear out may be the answer.
Step 1. On the DroidPlayer Android homescreen, navigate to SETTINGS > OTHER > MORE SETTINGS (on the RK3188 Quad core just open up Settings)
Step 2. Scroll down to ‘Apps’, then accross to XBMC and select it (if two instances of XBMC appear, choose the one that is greater then 75mb in size)
Step 3. Once you are looking at the XBMC app details, choose CLEAR CACHE. Exit and you are done