Now for the time being, have your engine bay properly dried via air blower, pressurized air, or by exposing engine bay to the sunlight (after opening the bonnet).
Especially dry the areas where coils are there (like coils leading to spark plugs), different connector areas, wirings, open the lid of the fuse box(es) and dry them too, etc.
I hope, all above helps, and your issue gets resolved. If not, take your car to some good garage, and have the issues sorted out. Thank you.