Lightroom 6 is not opening

[Alejandro5EB0]

Hello

I bought Lightroom back when it was available on CD and I have been using it since then. Now I cannot open my catalog.

I need help the version I am using is Lightroom 6

Thanks

[Rob_Cullen]

You have not given us much detail of your OS or any error messages, but common answers to this question are-

Restore a Backup Catalog.

Delete a {.LOCK} file, if it exists.

If you have a Mac with Catalina or BigSur OS then- v6 is Falling Apart- Petapixel article