Fatal Error when activating Music Store

I receive the following fatal error in WordPress when I attempt to activate the music store plug in.

fatal error Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or ‘}’ in /hermes/bosweb/web232/b2320/ipw.trustee2007/mountolivebaptistdayton.com-redirect/wp-content/plugins/music-store/music-store.php on line 372

I think it might be because I need to upgrade WordPress, but my server will not support the upgrade. Any help would be appreciated as I must build a music store for my church’s website that was built using WordPress.

https://ww.wp.xz.cn/plugins/music-store/