Changed servers and updated, many bugs

[MagicPID]

Hello,

We had our old server attacked and have consequently moved to a new one. I did a dump of the old database via MySQL Workbench and used BigDump to import that into our new MySQL server. That's the short of a very long story, so anyway ...

We moved from vB 4.1.5 in the process to 4.1.9 as we figured it would be a good time to do that. I cannot say whether it was due to the update or the server/database change, but we have several small non-critical errors that all users are reporting:

Problem 1) The recipient for private messages in the inbox are all "Array." See screenshot:



I've also just noticed that this occurs in other areas of the site ...



Problem 2) Instead of seeing their usernames upon logging on, users see this:



We used this template before switching to 4.1.9 and doing the server change and didn't have this issue, so I'm fairly certain that isn't the issue.

Though none of these errors are critical, they are starting to wear on me and our users. After going through a tough time with our servers, I just want to get these ironed out. I appreciate all the help you can give.

Thanks in advance.