"Blizzard Agent went to sleep, Attempting to wake it up..." error

Hello Blizzard, I got my battle.net app download Call of duty modern warfare and I left it to do so, but when I returned to check the download status I encountered with “Blizzard Agent went to sleep, Attempting to wake it up…” error I tried several solutions but It didn’t solve so I deleted the launcher and reinstalled it, The launcher worked for a moment and when I went to CODModern warfare page, I saw the download button again meaning I had to redownload the whole game again but instead I restarted it and when I boot it up again I saw “Blizzard Agent went to sleep, Attempting to wake it up…” again. What Do I Have To Do?
any help would be so appreciated

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