DME Fault and Misfires

[Jabbah]

I got the OPC to do a DME readout of a 997TTS I am hopefully buying and going through there are a couple of things that I'm not sure if I should be worried about.

The first is a fault code - P1253 Boost pressure adjustment range b1(below limit value)
They did mention that there was an issue with the waste gate on one side that was fixed so is this just a fault code that hasn't been cleared?

The are only over revs in range 1 with the count at 92 (5 op hours ago...)

There are also misfires recorded:

M120_Misfire counter for every ignition - 15117
M410_Misfire cont. operat. counter cyl 1 - 1
M410_Misfire cont. operat. counter cyl 6 - 2
M410_Misfire cont. operat. counter cyl 2 - 5
M410_Misfire cont. operat. counter cyl 4 - 1
M410_Misfire cont. operat. counter cyl 3 - 2
M410_Misfire cont. operat. counter cyl 5 - 4

Likely just due to the boost issue? Anything to be worried about or need further investigation?