@runningnooblet It was updated in the rerun to say Mash. And even if that weren't the case, titling this gallery "Mash, Matthew to replenish H magical power! !!" doesn't make sense because her name would either be Mash or Matthew. The japanese name Hな魔力補給するマシュ、マシュー!! just repeats her name "マシュ" twice with the second being elongated with the "ー". It's like how in the MGS games they scream SNAKE , SNAAAAAKE. If her name was really Matthew and that was the big issue with the title, then the title should have been Matthew, Matheeeeeew to replenish H magical power!! because again, the title is just repeating her name twice, elongating the second time. But that isn't the issue, the issue is that the uploader just google translated the name causing the issue.
Though admittedly, this really doesn't matter at all cause who really cares about the titles of pixiv gallery uploads on this site.