It would help if you provide pictures of the errors and a link to the .dmp files. For updating Plutonium, check the following: https://plutonium.pw/docs/update/#how-to-update-plutonium-mod
If you’re receiving a crash upon joining a BO2 server with Exception Address: 0x0054162C or 0x0057AD84, read the following:
To avoid this error, do the following before joining a server: open the party privacy menu, set the player limit to 1, then set it to the max value (18 for Multiplayer).