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They are in there initial stages probably that's why we are encountering such issues. Have you tried posting this on there TG t.me/massnetorg
I got my issues related to setting up miner fixed there. May be you can find a fix for this also. Or wait for moderator answer here.
Yes you can use your normal computer for mining MASS, no need for dedicated miners like in case of BTC, ETH and other expensive coins. Your home computer is enough to gather MASS.