Force Majeure Clause Invoked - software license audit threat

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Illustrative scenario prepared by my practice.
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Hypothetical question

Not gonna lie, i've been trying to resolve this on my own but I'm stuck.

software license audit threat. I've been dealing with this for about 4 months now and the situation isn't improving.

The contract was signed 23 months ago. I have a copy of the original agreement. The total amount in dispute is approximately $118,000.

Should I hire a lawyer for this or try to handle it myself?