Can I fix it

@josedoe , Josedoe , You may be able to fix it your self by using the disassembly guide below to take the phone apart as far as you have to, enabling you access to hopefully, carefully take the bend out with out damaging other components, also allowing to see if there are loose/damaged components, which you can replace at this time. If you find it is the battery bent and holding the phone out of shape, replace the battery as a damaged battery should not be fixed. If not up to trying the repair, drop into a good local cell/computer repair shop have them take a look and estimate repair. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

iPhone 6 Teardown