offline installer

I'am looking for an off-line updater/installer?

or someone who can explain this errors:

Failed to acquire payload: PowerProductPackage to working path: C:\Users\rbe\AppData\Local\Temp\{E3E9AED6-E6FA-4D72-B7CD-E814036963DF}\PowerProductPackage, error: 0x80072efd.
[4414:0054][2020-03-26T11:31:43]e000: Cannot download package PowerProductPackage

Application requested retry of package: 0x80072efd, encountered error: 0x13e8f98. Retrying...

Error 0x80072efd: Failed to send request to URL: cdnllnw.bentley.com/.../openbuildingsdesignerx64.msi, trying to process HTTP status code anyway.
[4414:0054][2020-03-26T11:32:37]e000: Error 0x80072efd: Unknown HTTP status code 0, returned from URL: cdnllnw.bentley.com/.../openbuildingsdesignerx64.msi