Addons doesn't load

I use 3 addons. but the only one that works is OneBag3 for inventory, but the others 2 that i have doesn't load in game, they appear on the character selection and its marked the option to load out of date addons. ( with onebag i cant evenenter to config menu)
With the previous 5.4.2 patch they didn't work either.

Make sure they are compatible with 5.4.8.
You can still use non 5.4.8 addons, by clicking on the checkbox "Load out of date addOns", but you might have issues with them.