propl. that vst you talked about 'gerrison..'
This indicates a load error and a chunk overflow. I have seen that before. Better vst support in in the making
Search this board. I have explained the background for this several times. You are not alone :p
I recommend Synth1 as basic vst instrument - Free, and with 100' of good banks on the net
Here is the list of tested and working vst's
https://lmms.io/documentation/Tested_VSTs