Backups doesn't work with latest version (works fine with version 1.3.3).
Server is on latest Paper 1.16.2 build.

>.... [10:19:06 WARN]: Exception in thread "Thread-249" java.lang.IllegalStateException: Asynchronous command dispatch!
>.... [10:19:06 WARN]: at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:15)
>.... [10:19:06 WARN]: at org.bukkit.craftbukkit.v1_16_R2.CraftServer.dispatchCommand(CraftServer.java:775)
>.... [10:19:06 WARN]: at ratismal.drivebackup.UploadThread.setAutoSave(UploadThread.java:620)
>.... [10:19:06 WARN]: at ratismal.drivebackup.UploadThread.run(UploadThread.java:126)
>.... [10:19:06 WARN]: at java.lang.Thread.run(Thread.java:748)

same problem

Can I see one of your config.ymls?

Can you try this bug fix.

Same issue, I will try the bug fix.

[08:41:40 WARN]: Exception in thread "Thread-746" java.lang.IllegalStateException: Asynchronous command dispatch!
[08:41:40 WARN]: at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:15)
[08:41:40 WARN]: at org.bukkit.craftbukkit.v1_16_R2.CraftServer.dispatchCommand(CraftServer.java:775)
[08:41:40 WARN]: at ratismal.drivebackup.UploadThread.setAutoSave(UploadThread.java:620)
[08:41:40 WARN]: at ratismal.drivebackup.UploadThread.run(UploadThread.java:126)
[08:41:40 WARN]: at java.lang.Thread.run(Unknown Source)

Config:

DriveBackupV2 - by Max Maeder (MaxTheGinus)

delay: 480
backup-thread-priority: 0
keep-count: 15
local-keep-count: 1
backups-require-players: true
scheduled-backups: false
schedule-timezone: -00:00
backup-format-timezone: -00:00
backup-list:

• path: world
  format: '''Backup-world-''yyyy-M-d--HH-mm''.zip'''
  create: true
• path: plugins
  format: '''Backup-plugins-''yyyy-M-d--HH-mm''.zip'''
  create: true
  blacklist: ['dynmap/**']
  dir: backups
  destination: backups
  googledrive:
  enabled: true
  onedrive:
  enabled: false
  ftp:
  enabled: false
  hostname: ftp.example.com
  port: 21
  sftp: false
  ftps: false
  username: Username
  messages:
  send-in-chat: true
  no-perm: You don't have permission to do this!
  backup-start: Creating backups, the server may lag for a little while...
  backup-complete: Backup complete,
  next-backup: the next backup is in %TIME minutes
  next-schedule-backup: the next backup is at %DATE
  next-schedule-backup-format: h:mm a EEE, MMM d O
  auto-backups-disabled: Automatic backups are disabled
  advanced:
  metrics: true
  update-check: true
  suppress-errors: false
  prefix-chat-messages: true
  date-language: en
  ftp-file-seperator: /

@rrunswickjr Thanks, let me know if it works

Got a new error:
[08:49:13 INFO]: [DriveBackupV2] Forcing a backup
[08:49:13 WARN]: Exception in thread "Thread-28" java.lang.Error: Unresolved compilation problems:
[08:49:13 WARN]: Unhandled exception type Exception
[08:49:13 WARN]: Unhandled exception type Exception
[08:49:13 WARN]: Unhandled exception type Exception
[08:49:13 WARN]: Unhandled exception type Exception
[08:49:13 WARN]:
[08:49:13 WARN]: at ratismal.drivebackup.UploadThread.run(UploadThread.java:127)
[08:49:13 WARN]: at java.lang.Thread.run(Unknown Source)

Edit:
Paper Version- [08:50:53 INFO]: This server is running Paper version git-Paper-"057edab7" (MC: 1.16.2) (Implementing API version 1.16.2-R0.1-SNAPSHOT)
This is the R2 dev version for entity teleportation testing from the paper discord.
OS: Windows Server 2016
CPU: AMD A10 5800K
Ram: 16GB (11GB dedicated to MC)

Can you re-download from the link? I think I fixed the issue.

I will report when the backup completes, but it appears to be working at this time.

What is the best place to ask you an unrelated question about local backup destinations?

Backup just completed, looks good. Thank you

Will be fixed with release 1.3.5.