Email Scheduled Reports

Hi there!
I have problems with Scheduled Reports, I created different registers but I didn’t receive any email. My version is 7.11.15. In some post, I read that other users had similar problems and they could solve them changing the value of field “last_run”. I tryed to do this, but my problem persisted.

On the other hand, I thought that I could have problems with the job. In the module “scheduler”, all the registers had the field “last_run” empty like in the other module. I changed it but I couldn’t solve anything.

I have some workflows in which the action is to send an email and I don’t have problems with them. Could someone help me?