If you had a publisher license installed and you removed it you will need to do some house keeping to get things to work.
1. Stop the distribution Serivce and Management Service
2. Delete the folder ManagementService (C:\ProgramData\QlikTech\ManagementService)
3. Restart the distribution Serivce and Management Service
With the upgrade from QV 10 to QV 11, Qliktech has removed QMC and now only QEMC is there.
And all the functionalities are availble with QEMC only.
If you have publisher license then you can directly goto documents tab on QEMC then source documents and schedule the reload task.
If you dont have publisher license then you can go to documents tab then to user documents and click on one application and you can find reload tasks on right hand side.
for more information go through the documentation.