What does the error message "503: No free licenses available. Please wait a while and try again." mean?

This error message can occur in following situation:

1. You don’t have writing rights to file haku.net. The file is located in MOT’s home directory, i.e. in C:\Program Files\MOT.
Solution: Add the writing rights to haku.net. In case of a multi-user license, remember to change both NTFS and share access rights.

2. You opened MOT twice.
Solution: When you open MOT, click the MOT icon only once. Only one MOT window can be open at a time.

3. MOT has crashed and your user license has been locked.
Solution: Restart your computer.