Problems with "Package Sync"

I have a problem with the "Packages sync", out of nowhereIstartedto failthis task and start to say this when the thask end it:

In the file Policy.sync.log say:

Mon, 13 Jul 2015 16:19:53 Checking if we have a valid local database file before attemp to start policy.sync.exe

Mon, 13 Jul 2015 16:19:53 [START] Policy synchronization started.

Mon, 13 Jul 2015 16:19:54 Get ldap info from cache since failed to contact ldap server.

Mon, 13 Jul 2015 16:19:54 Sending policy request to core server.

Mon, 13 Jul 2015 16:19:54 Requesting policy for {D2719161-F521-9F4B-990C-04B21259E668}, user ITAUCHILE\CCGS5425, ldap user CN=Gomez Stamulis\, Carla Constanza CCGS5425,OU=Chile BKB,OU=Accounts,OU=BAND,DC=Itauchile,DC=cl, ladp machine

Mon, 13 Jul 2015 16:19:55 Web request returned 0 The web request was successful.

Mon, 13 Jul 2015 16:19:55 No policy downloaded from core

Mon, 13 Jul 2015 16:19:55 Processing new and updated remote operations

Mon, 13 Jul 2015 16:19:55    In LoadNewAndUpdatedOperations

Mon, 13 Jul 2015 16:19:55    Out LoadNewAndUpdatedOperations

Mon, 13 Jul 2015 16:19:55    In ConvertDataTable

Mon, 13 Jul 2015 16:19:55    Out ConvertDataTable

Mon, 13 Jul 2015 16:19:55    In RemoteOperationDownload::Download

Mon, 13 Jul 2015 16:19:55    Out RemoteOperationDownload::Download

Mon, 13 Jul 2015 16:19:55    In PolicyResponseData::ProcessExecuteOperations

Mon, 13 Jul 2015 16:19:55    Out PolicyResponseData::ProcessExecuteOperations

Mon, 13 Jul 2015 16:19:55 Processing deleted remote operations

Mon, 13 Jul 2015 16:19:55    In ConvertDataTable

Mon, 13 Jul 2015 16:19:55    Out ConvertDataTable

Mon, 13 Jul 2015 16:19:55    In WriteServerResponse

Mon, 13 Jul 2015 16:19:55    Out WriteServerResponse

Mon, 13 Jul 2015 16:19:55 Policy request has been processed.

Mon, 13 Jul 2015 16:19:55 Checking for rescheduled policies

Mon, 13 Jul 2015 16:19:55 [STOP] Policy Synchronization application complete.

I have no idea what could be wrong, i didn't make any changes at all and it worked beforeand now it doesn't.

I have 9.50.3.1 version, service pack 2.

Thanks you for your help!! :/