Connection error when using custom dataset

[limwching190]

Hi, I am trying to run correlationAnalyzeR using my own dataset. I managed to generate the correlations using the following command:
corrMat <- generateCorrelations(cts, transformed = T)

However, there is a connection error when running the following code:

                          corrMat = corrMat,
                          crossCompareMode = FALSE,
                          corrMat_label = "User-Supplied",
                          TERM2GENE = NULL)

Error message:

Warning in analyzeSingleGenes(genesOfInterest = c("CD68"), corrMat = corrMat,  :
  Failed to establish connection to database ... retrying now ... 3 attempts left.
Warning in analyzeSingleGenes(genesOfInterest = c("CD68"), corrMat = corrMat,  :
  Failed to establish connection to database ... retrying now ... 2 attempts left.
Error in analyzeSingleGenes(genesOfInterest = c("CD68"), corrMat = corrMat,  : 
  Unable to connect to database. Check internet connection and please contanct package maintainer if you believe this is an error.

I checked the script and try to connect to the database, but it says unknown server host, as below:

conn <- try(silent = T, eval({
+       DBI::dbConnect(
+         drv = RMySQL::MySQL(),
+         user = "public-rds-user@m2600az-db01p.mysql.database.azure.com", port = 3306,
+         dbname="correlation_analyzer",
+         password='public-user-password',
+         host="m2600az-db01p.mysql.database.azure.com"
+       )
+     }))
> conn
[1] "Error in .local(drv, ...) : \n  Failed to connect to database: Error: Unknown server host 'm2600az-db01p.mysql.database.azure.com' (11001)\n\n"
attr(,"class")
[1] "try-error"
attr(,"condition")
<simpleError in .local(drv, ...): Failed to connect to database: Error: Unknown server host 'm2600az-db01p.mysql.database.azure.com' (11001)

Does anyone have any suggestions or solution to this issue? Thank you very much!