This dataset includes a dynamic data source. Since dynamic data sources aren't refreshed in the Powe

HesamMontazer 

Your structure with RelativePath and Query is exactly the supported exception on Microsoft documents.
But you must ensure BaseURL is a literal string, not a parameterized or function-passed value

You may try below adjusted M code (Hardcode the BaseURL string directly inside Web.Contents instead of keeping it in a variable)

WebCall = Json.Document(
Web.Contents(
"https://brandgarage.weclapp.com", // hardcoded
[
RelativePath = "webapp/api/v1/salesOrder",
Query = QueryParams,
Headers = [
AuthenticationToken = token,
#"Content-Type" = "application/json",
Accept = "application/json"
]
]
)
),

Power BI Service blocks refresh for queries with dynamic URLs. Your use of Web.Contents with changing query parameters (like StartDate, EndDate, Page) makes the source dynamic.
Fix:
Make the URL structure static by keeping the same field names in the Query record, even if some values are null. That way, Power BI can validate the source at design time.