vBulletin DB Errors recently

[pjkcards]

Running on a VPS, which has worked fine for years and there isn't any increase in traffic.

Running MySQL 5.6 now, with vB 4.2.1. Any other ideas to look into would be appreciated.

Thanks.

--------------- Added [DATE]1406278992[/DATE] at [TIME]1406278992[/TIME] ---------------

We got about 12,000 more of these errors in the last 24 hours.

We've upgraded MySQL as recommended, what more can we do? Traffic has stayed relatively the same over the last few months, but this last month we've got tons of these "too many connection" errors.

Any idea why this is happening now? Is adding more RAM the only option?

Thanks.