Car cannot start - inverter cable?

fellow Prius owners,

I have a 2014 Prius V 5. I changed the inverter pump and in order to do so, I removed the inverter. There were no major problems while trying to remove it (as far as I can tell, nothing broken, no major struggle with anything, etc.) After replacing the pump, I noticed the cable does not "lock" anymore - it comes off rather easily with a slight tug. Furthermore, the car can no longer start. I'm not sure if the two are related or not. Does everyone has any idea? I've enclosed a few pictures of the connector (both male and female ends).

I thought it might be the battery, but I've charged it up to 100%. I also made sure the HV lock is firmly and correctly in place. I also verified all the battery connections are secured.

Thanks!