car didnt start after ignition coil change

[jacobrob]

the car was having having issues with missing so i changed the spark plugs but didnt work n the then changed the ignition coil so car reached home without missing but didnt start the next morning

now i am dam confused help

[aarif]

Guy who install spark plu and coil , must have removed the battery and then plug back the terminal w/o tightening them. Go and check im more than sure you can move battery terminal by ur hand. Bolt them nicely and tight them full.