500 Internal Server Error on team page, when contest delay start.

[cubercsl]

Description of the problem

500 Internal Server Error on team page, when the contest delay start.

Your environment

DOMjudge 9.0 / Ubuntu 24.04 / Nginx

Steps to reproduce

1. Create a test contest, set a contest start time.
2. Import problems from zip.
3. Delay contest start.
4. Jury submits another solution for testing.

Expected behaviour

Jury can make submission without any error.

Actual behaviour

An error occurred when jury making a submission.

No negative values allowed in score key element, got -423.000000000.

Resuming contest start can mitigate this.

[2026-02-01T21:21:56.966732+08:00] request.INFO: Matched route "team_submit". {"route":"team_submit","route_parameters":{"_route":"team_submit","problem":null,"_controller":"App\\Controller\\Team\\SubmissionController::createAction"},"request_uri":"https://dj.ecf.icpc.site/team/submit","method":"POST"} []
[2026-02-01T21:21:56.969648+08:00] security.DEBUG: Read existing security token from the session. {"key":"_security_domjudge","token_class":"Symfony\\Component\\Security\\Core\\Authentication\\Token\\UsernamePasswordToken"} []
[2026-02-01T21:21:56.971273+08:00] php.INFO: User Deprecated: MySQL 5.6 support is deprecated and will be removed in DBAL 4. Consider upgrading to MySQL 5.7 or later. (AbstractMySQLDriver.php:113 called by AbstractDriverMiddleware.php:68, https://github.com/doctrine/dbal/pull/5072, package doctrine/dbal) {"exception":"[object] (ErrorException(code: 0): User Deprecated: MySQL 5.6 support is deprecated and will be removed in DBAL 4. Consider upgrading to MySQL 5.7 or later. (AbstractMySQLDriver.php:113 called by AbstractDriverMiddleware.php:68, https://github.com/doctrine/dbal/pull/5072, package doctrine/dbal) at /opt/domjudge/domserver/webapp/vendor/doctrine/deprecations/src/Deprecation.php:208)"} []
[2026-02-01T21:21:56.975873+08:00] security.DEBUG: User was reloaded from a user provider. {"provider":"Symfony\\Bridge\\Doctrine\\Security\\User\\EntityUserProvider","username":"jury"} []
[2026-02-01T21:21:56.976105+08:00] security.DEBUG: Checking for authenticator support. {"firewall_name":"main","authenticators":3} []
[2026-02-01T21:21:56.976116+08:00] security.DEBUG: Checking support on authenticator. {"firewall_name":"main","authenticator":"App\\Security\\DOMJudgeXHeadersAuthenticator"} []
[2026-02-01T21:21:56.977726+08:00] security.DEBUG: Authenticator does not support the request. {"firewall_name":"main","authenticator":"App\\Security\\DOMJudgeXHeadersAuthenticator"} []
[2026-02-01T21:21:56.977744+08:00] security.DEBUG: Checking support on authenticator. {"firewall_name":"main","authenticator":"App\\Security\\DOMJudgeIPAuthenticator"} []
[2026-02-01T21:21:56.978174+08:00] security.DEBUG: Authenticator does not support the request. {"firewall_name":"main","authenticator":"App\\Security\\DOMJudgeIPAuthenticator"} []
[2026-02-01T21:21:56.978186+08:00] security.DEBUG: Checking support on authenticator. {"firewall_name":"main","authenticator":"Symfony\\Component\\Security\\Http\\Authenticator\\FormLoginAuthenticator"} []
[2026-02-01T21:21:56.978204+08:00] security.DEBUG: Authenticator does not support the request. {"firewall_name":"main","authenticator":"Symfony\\Component\\Security\\Http\\Authenticator\\FormLoginAuthenticator"} []
[2026-02-01T21:21:57.010778+08:00] app.INFO: Submission input verified [] []
[2026-02-01T21:21:57.024062+08:00] php.INFO: User Deprecated: Nesting transactions without enabling savepoints is deprecated. Call Doctrine\DBAL\Connection::setNestTransactionsWithSavepoints(true) to enable savepoints. (Connection.php:1406 called by UnitOfWork.php:427, https://github.com/doctrine/dbal/pull/5383, package doctrine/dbal) {"exception":"[object] (ErrorException(code: 0): User Deprecated: Nesting transactions without enabling savepoints is deprecated.\nCall Doctrine\\DBAL\\Connection::setNestTransactionsWithSavepoints(true) to enable savepoints. (Connection.php:1406 called by UnitOfWork.php:427, https://github.com/doctrine/dbal/pull/5383, package doctrine/dbal) at /opt/domjudge/domserver/webapp/vendor/doctrine/deprecations/src/Deprecation.php:208)"} []
[2026-02-01T21:21:57.037295+08:00] app.DEBUG: EventLogService::log arguments: 'submission' '[2660]' 'create' '3' '' '' [] []
[2026-02-01T21:21:57.038066+08:00] request.INFO: Matched route "current_app_api_submission_list_1". {"route":"current_app_api_submission_list_1","route_parameters":{"_route":"current_app_api_submission_list_1","_controller":"App\\Controller\\API\\SubmissionController::listAction","_format":"json","cid":"ecf50-judge-test"},"request_uri":"http://localhost/api/contests/ecf50-judge-test/submissions?ids%5B0%5D=2660","method":"GET"} []
[2026-02-01T21:21:57.050489+08:00] app.DEBUG: EventLogService::log created submissions with ID's ["2660"] for 1 contest(s) [] []
[2026-02-01T21:21:57.052370+08:00] app.DEBUG: ScoreboardService::calculateScoreRow '3' '1' '14' [] []
[2026-02-01T21:21:57.077701+08:00] app.DEBUG: ScoreboardService::updateRankCache '3' '1' [] []
[2026-02-01T21:21:57.096328+08:00] request.CRITICAL: Uncaught PHP Exception Exception: "No negative values allowed in score key element, got -423.000000000." at ScoreboardService.php line 578 {"exception":"[object] (Exception(code: 0): No negative values allowed in score key element, got -423.000000000. at /opt/domjudge/domserver/webapp/src/Service/ScoreboardService.php:578)"} []
[2026-02-01T21:21:57.127785+08:00] security.DEBUG: Stored the security token in the session. {"key":"_security_domjudge"} []

Any other information that you want to share?

This can also repro on the main branch. Even the team page is inaccessible with an error

Call to a member function getTimestamp() on null

which may introduced in 8535f48 with #3187.

[2026-02-04T12:27:02.192277+00:00] request.CRITICAL: Uncaught PHP Exception Error: "Call to a member function getTimestamp() on null" at MiscController.php line 109 {"exception":"[object] (Error(code: 0): Call to a member function getTimestamp() on null at /home/domjudge/demoweb/webapp/src/Controller/Team/MiscController.php:109)"} []
[2026-02-04T12:27:02.199272+00:00] security.DEBUG: Stored the security token in the session. {"key":"_security_domjudge"} []

[meisterT]

There might be two different issues here.

re No negative values allowed in score key element, got -423.000000000. --> are you using a scoring problem / contest?

[cubercsl]

There might be two different issues here.

re No negative values allowed in score key element, got -423.000000000. --> are you using a scoring problem / contest?

No, this happened in 9.0 branch. I think we do not have a scoring problem.

Also, the error does not block making submission and judging. After I canceled the delay contest start, the error disappeared.

[cubercsl]

To clarify, all of this occurs before the contest starts, during the jury test submission. If the contest time is set to be delayed, this will happen when the jury submits the submission from the team page. Therefore, it doesn't seem to be very crucial.

However, on the main branch, delaying the contest time will prevent the team page from displaying. This can be problematic for contests that unlock workstations before the contest start.

[cubercsl]

There might be two different issues here.
re No negative values allowed in score key element, got -423.000000000. --> are you using a scoring problem / contest?

No, this happened in 9.0 branch. I think we do not have a scoring problem.

Also, the error does not block making submission and judging. After I canceled the delay contest start, the error disappeared.

I think this might be because the contest start time became null after the delayed start.

Because I can see negative time. But normally it should be 0.

Delay start

Without delay start

[meisterT]

Thanks for all additional info, I will fix these.