Lightroom wont open on my Mac

[#1]

When I try and open Lightroom , the programme look slike it is about to open for a fraction of a second and then it disapperas. Have treid shutting down computer and restarting but to no avail. Im running Lightoom on mac Book Pro 2015 catalina 10.15.14 > can anyone help ?

{Moved from Lightroom Cloud to Lightroom Classic Forum by Moderator}

[#2]

When I try and open Lightroom , the programme look slike it is about to open for a fraction of a second and then it disapperas. Have treid shutting down computer and restarting but to no avail. Im running Lightoom on mac Book Pro 2015 catalina 10.15.14 > can anyone help ?

{Moved from Lightroom Cloud to Lightroom Classic Forum by Moderator}

[#3]

Same Here

[#4]

see: https://helpx.adobe.com/lightroom-classic/kb/lightroom-error-catalog-cannot-be-opened-lrcat-lock.htm...