According to the documentation you first need to upgrade to 9.6 before you can upgrade further.
Assuming you still have maintenance you can log a shipping request for the software.
In addition to my previous post.
Please also check the PAM for version 10.2f
You might also need to upgrade the OS of your server.
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In addition to the details, Jan shared, Please note 10.1 has reached EOL and any issues related to this version will not be supported. So please plan to upgrade to 10.2 or later versions.
Below is the PAM for 10.2
Further, PC/PWX 10.2.everything go End of Life at the end of September.
So you really need to plan an upgrade to PC/PWX 10.4.1 or later.
Current PC/PWX code is 10.5.0.
PC/PWX 10.5.1 are expected to release this Fall.