Big framerate problem

[Acanca]

Hi
I play on SAURFANG (Oceanic server)
Since new patch, I have a big framerate problem with nui+ (nui+ version 5.07.28 (Plus) ).
As I log my FPS is about 50 but it drops to 11 after a few seconds.
I disabled all add-on but nui+ and it seems good except I had the following message :
"Your AddOns are experiencing a large number of errors and may be slowing down the game. You can turn on display of Lua error in the interface options."
I choosed 'Ignore'.

If I display the Lua Error the count is impressive. (Interface\AddOns\nUI_Button.lua:1004:attempt to cmpare number with string)