This is more than likely due to the function which is (for instance) clipping your images needs an older version of jquery.
When you placed the bootstrap (v3?) and included the jquery in the statement then it over-rides that which is included in the image crop function.
try including versions jquery, and you might want to also include googles jquery and then test.
ie.
include path/jquery.1.1.min etc
Please let me know if this was the issue.
Specifically add this one first, and then lets see if your problem quits: