Failed to upload report

Hello
i have an issue while trying to perform a sonar analysis sais:

[ERROR] Failed to execute goal org.sonarsource.scanner.maven:sonar-maven-plugin:3.9.1.2184:sonar (default-cli) on project XXX: Failed to upload report: closed → [Help 1]
with debug mode, I got:
14:54:38.140 Upload report
[DEBUG] 14:54:38.146 → POST https://sonarqube.xxx.com/api/ce/submit?projectKey=xx&projectName=xx&characteristic=pullRequest%3D7636 (2816287-byte body)
[DEBUG] 14:54:39.562 ← 400 Bad Request https://sonarqube.xx.com/api/ce/submit?projectKey=xx&projectName=xx&characteristic=pullRequest%3D7636 (1416ms, 138-byte body)

the analysis are working fine for branches but only MR not working and also it works perfectly for other project for both MR and branches analysis

could you please help on identifying the issue ?
here is my maven command :
mvn sonar:sonar -Dsonar.host.url=$SONAR_HOST_URL -Dsonar.token=$SONAR_TOKEN -Dsonar.java.binaries=target -Dsonar.ws.timeout=300 -Dsonar.pullrequest.branch=$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME -Dsonar.pullrequest.key=$CI_MERGE_REQUEST_IID -Dsonar.pullrequest.base=$CI_MERGE_REQUEST_TARGET_BRANCH_NAME -s ./settings.xml -Dmaven.repo.local=$GITLAB_MAVEN_REPO_PATH

Hi,

Welcome to the community!

Typically, errors in uploading the analysis report trace back to something “helpful” on the network, such as a proxy.

However you might first check $SONARQUBE-HOME/logs/access.log to see if the request is landing at SonarQube. If it’s not, then talk to your network folks. If it is, then check your other server logs and bring us back any errors you see.

 
HTH,
Ann