AVG and levaerbuster

Randomly when I start the game appear ( AVG general behavioral detection ) and required to restart PC. After restart it appear again once or twice but without restart and when I press reconnect I stuck at 0% and cannot join the game ……so I take a leaver buster ….its happen 3 time in one month

RADS\PROJECTS\LOL_PATCHER\RELEASES\0.0.0.66\DEPLOY\LOLPATCHERUX.EXE

its Annoying..i need to know 1-why this happen 2-how to solve it thanks