Traccar windows service start then stop ,The Traccar service terminated with service-specific error Incorrect function..

This problem happened when I changed from H2 database to mysql didn't remove the old database the had been created by an old version of traccar.
to solve it : just remove the old database of traccar and create a new one.
Another Problem is when you have a no password database , and made a space in the password place in the configuration file traccar.xml

 
<entry key='database.user'>root</entry> 
<entry key='database.password'> </entry>

to solve it: remove the space in this field and start traccar service again.

 
<entry key='database.user'>root</entry> 
<entry key='database.password'></entry>