I recently passed my probation at my job about a month ago, I had a few falls but many rises so all was okay. As of late though, I have made a few errors in my work, simple errors but errors nonetheless. I understand these and admit to them but it appears that I have now made my boss get to the point he is saying things like "if this carries on I'm going to fire you!" and also said that the next time it happens I will get a verbal warning.
Please note, I wasn't taken to one side, I was just told this in front of colleagues. I find all of this highly unprofessional and don't really know what to do now. At first I liked where I worked, but now they are quick to rip my head off.