Open Connection Error - Power Bi Embedded

[MkPowerBi]

Dear gents,

i have created a new workspace for power bi embedded on D365 fo , and deployed it on live environment, once opening the form this error appears : "OpenConnectionError", i read a lot of this error on community but i didn't find the exact solution

noting that i have 2 reports on my power bi service workspace one including row level security,

at first the report with row level security was giving this error, but now both reports are returning the same error.

kindly assist if there is any solution to fix it,

regards,