One should not try nor have to delete a mongodb-*.sock file that belongs to another user.
Running more than one cryoSPARC instance on the same computer requires coordination between the instances and the users who manage them:
To avoid additional problems, the cryoSPARC instance(s) on this computer need to be brought into compliance with these requirements as soon as possible. In addition, these restrictions need to be considered for potential additional cryoSPARC installations on this computer.
On your machine, it appears that at least two cryoSPARC instances’ network port ranges overlap.
I recommend that you identify a suitable, continuous range of 11 unused network ports, possibly 39020 thru 39030 (please confirm these ports aren’t otherwise used) and run (see guide)
cryosparcm changeport 39020
.