You should ask your attorney what you were being violated for probation for. From the sections cited above you were on probation for some kind of illegal gun possession and were violated for another kind of illegal gun possession. Generally, if you're on probation and commit another crime you've violated probation, (it doesn't have to be the same crime, it can be ANY crime), aside from any other conditions of probation you might typically have such as abstinence from drugs or alcohol and bars, clean drug testing, reporting to your PO when required, curfews, being employed, not consorting with criminals or "disreputable people and places" (including old friends, and so forth.
And often if you're on probation and violated, it's very cut and dried that if the PO violates you, you will lose your second chance. With probation, typically, it's one strike and you're out. Sorry, but that's the way it works unless you really weren't doing what they claim you did causing probation to be revoked, but you need to confirm whether you have a defense to the violation with your attorney ASAP.
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I think you may be using the wrong phrase as to "incompetence" .You appear competent. Do you mean that you have some affirmative defense to the charges that is not pursued?
Take it up with your lawyer.