Android Fatal signal 11 (SIGSEGV) at 0x00000050 (code=1) will trying to load an activity

i am trying to load an android activity from unity, i made all the steps from the tutorials as it supposed to by, when i am clicking the button to open the android activity i get this err:

"Android Fatal signal 11 (SIGSEGV) at 0x00000050 (code=1)" will trying to load an activity

any suggestions? thank you