Originally Posted by
2manybikes
The last photo clearly shows the chain off the front gears (chainrings). It is stuck between the frame and the crank (the part that the pedals attach to.) You might be able take it off yourself, If not find a bike shop, sometimes your need to take the crank off, and that requires a special tool.
Yup, a little careful "tugging" should un-jam the chain. Although, some pictures show it correctly on the chainring.
Perhaps that "jammed" pic was from pedaling backwards ?
If off the chainring, place it back on the front ring, that matches the gear shift #
If the shifter is in 1, put it on the smallest ring . 2 for the middle ring. 3 for the largest.
Then get some chain lube from a bike shop, hardware store, WalMart ....
The type of lube doesn't matter much. Something is better than nothing.