[BUG]: Creating a task for a hashlist with 0 remaining hashes causes an agent error loop #2515

{'action': 'getTask', 'token': 'OqXtxPLKQU'}
http://$HASHTOPOLIS_URL:8082 "POST /api/server.php HTTP/1.1" 200 404
b'{"action":"getTask","response":"SUCCESS","taskId":71,"attackcmd":"-a 0 #HL#  somewordlist.txt","cmdpars":" --hash-type=22000 ","hashlistId":4,"bench":30,"statustimer":5,"files":["somewordlist.txt"],"crackerId":2,"benchType":"speed","hashlistAlias":"#HL#","keyspace":2,"usePreprocessor":false,"preprocessor":0,"preprocessorCommand":"","enforcePipe":false,"slowHash":false,"useBrain":false}'
Got task with id: 71
{'action': 'downloadBinary', 'token': 'OqXtxPLKQU', 'type': 'cracker', 'binaryVersionId': 2}
http://$HASHTOPOLIS_URL:8082 "POST /api/server.php HTTP/1.1" 200 159
b'{"action":"downloadBinary","response":"SUCCESS","url":"https:\\/\\/hashcat.net\\/beta\\/hashcat-7.1.2-821-g8a58f48.7z","name":"hashcat","executable":"hashcat.bin"}'
{'action': 'getFile', 'token': 'OqXtxPLKQU', 'taskId': 71, 'file': 'known_wifi_passwords.txt'}
http://$HASHTOPOLIS_URL:8082 "POST /api/server.php HTTP/1.1" 200 156
b'{"action":"getFile","response":"SUCCESS","filename":"somewordlist.txt","extension":"txt","url":"getFile.php?file=12&token=OqXtxPLKQU","filesize":33}'
File is present on agent and has matching file size.
{'action': 'getChunk', 'token': 'OqXtxPLKQU', 'taskId': 71}
http://$HASHTOPOLIS_URL:8082 "POST /api/server.php HTTP/1.1" 200 74
b'{"action":"getChunk","response":"ERROR","message":"Internal server error"}'
Getting of chunk failed: {'action': 'getChunk', 'response': 'ERROR', 'message': 'Internal server error'}

$CLIENT_IP - - [03/Oct/2026:01:52:05 +0000] "POST /api/server.php HTTP/1.1" 200 759 "-" "s3-python-0.7.6"
[Sat Oct 03 01:52:05.433216 2026] [php:warn] [pid 268:tid 268] [client $CLIENT_IP:35624] PHP Warning:  Trying to access array offset on null in /var/www/html/src/inc/utils/ChunkUtils.php on line 210
[Sat Oct 03 01:52:05.433309 2026] [php:notice] [pid 268:tid 268] [client $CLIENT_IP:35624] AgentApi [getChunk]: Hashtopolis\\inc\\Util::createLogEntry(): Argument #2 ($issuerId) must be of type string, null given, called in /var/www/html/src/inc/utils/ChunkUtils.php on line 210