[unable to play]

my game sends me back to the technic launcher eveytime i log in it will show the mojang screen the just go back to the launcher anyone know how i can fix this?

 

[help me please]

so im new to tekkit and i was playing attack on b team and i was clicking throught the controls figuring out what thy would do and i clicked () and it says OneWayBlock set facing away and now i cant left click everytime i do the command bar pops up and its getting really annoying if you can help i would be VERY!!!!!! greatful thank you