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Article ID: 128822, created on May 12, 2016, last review on May 12, 2016

  • Applies to:
  • Plesk Automation 11.1


The following error is displayed in the Customer Control Panel on attempt to create a website backup:

Could not connect to
    Error:  server "server"
    Runtime error: Can't call method "put" on an undefined value at /usr/local/psa/PMM/agents/shared/Storage/ line 245.
     at /usr/local/psa/PMM/agents/shared/Storage/ line 245
            Storage::FtpFileStorage::uploadFileToFtp('Storage::FtpFileStorage=HASH(0x3d65eb8)', '/var/lib/psa/dumps/resellers/reseller1/clients/client1/d...', 'resellers/reseller1/clients/client1/domains/example...') called at /usr/local/psa/PMM/agents/shared/Storage/ line 293
            Storage::FtpFileStorage::CleanupFiles('Storage::FtpFileStorage=HASH(0x3d65eb8)') called at /usr/local/psa/admin/bin/plesk_agent_manager line 674
            main::__ANON__('Error::Simple=HASH(0x3a27de0)', 'SCALAR(0x31bf7a0)') called at /usr/local/psa/PMM/agents/shared/ line 330
            eval {...} called at /usr/local/psa/PMM/agents/shared/ line 321
            Error::subs::run_clauses('HASH(0x3a265f8)', 'Can\'t call method "mkdir" on an undefined value at /usr/loca...', undef, 'ARRAY(0x3a267f0)') called at /usr/local/psa/PMM/agents/shared/ line 417
            Error::subs::try('CODE(0x3a26358)', 'HASH(0x3a265f8)') called at /usr/local/psa/admin/bin/plesk_agent_manager line 680
            main::perform('verbose', 4, 'owner-type', 'server', 'split-size', undef, 'session-path', '/usr/local/psa/PMM/sessions/2015-04-28-121233.48', 'description', ...) called at /usr/local/psa/admin/bin/plesk_agent_manager line 1331
            main::__ANON__() called at /usr/local/psa/PMM/agents/shared/ line 406
            eval {...} called at /usr/local/psa/PMM/agents/shared/ line 398
            Error::subs::try('CODE(0x3d58560)', 'HASH(0x3d58890)') called at /usr/local/psa/admin/bin/plesk_agent_manager line 1339
            main::main() called at /usr/local/psa/admin/bin/plesk_agent_manager line 1343.

The error below can be found in the backup session log /usr/local/psa/PMM/sessions/<sess_id>/psadump.log:

    [13899]: 07:24:01 DEBUG passive
    [13899]: 07:25:04 ERROR 31af1a07-1637-4b73-8e61-65814b48c36c Could not connect to <---
    [13899]: 07:25:04 DEBUG Tar bundle. id=resellers/example/clients/client1/domains/, destFile=/var/lib/psa/dumps/resellers/reseller1/clients/client1/domains/
    [13946]: 07:25:04 DEBUG FileFinder: tar resolved to /bin/tar
    [13946]: 07:25:04 DEBUG Executing bundle producer: 'su sub2639_44 --shell /bin/bash -c "/bin/tar -f - -c --anchored  -X '/tmp/filehM0H85' *"' in /var/www/vhosts/


No route between the web service node and backup node or firewall on the backup node blocks connections.


  1. Make sure the there is a route between the web service node and the backup node:

    Run on the web service node:

    # traceroute

    configure proper routing if any issues found.

  2. Add web server IP address and Management node IP addresses in the list of allowed IP's. For example and retry creating backup:

    iptables -I INPUT -s -j ACCEPT
    iptables -I INPUT -s -j ACCEPT

    Where is IP address of web service node and is the IP address of the management node.

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