2017 Hyundai IONIQ Electric Premium
This doesn't look Ok to me. The blue piece of plastic prevents it from being fully inserted and could prevent the locking of the cable.Here are some photos of the trickle charger. It looks OK to me (as far as you can tell by looking, which is probably not a lot).
Try removing it.
It seems to have been pushed out of its seat. Normally there for water/dust-sealing the connection.