Failed to run the task: unexpected conditions

Hello colleagues,

i have been doing backups without problems until yesterday... The error details were the follows:

Failed to run the task: unexpected conditions. Additional info:
--------------------
Error code: 110
Module: 9
LineInfo: 652a61e599f14d6a
Fields: $module : C:\Archivos de programa\Acronis\BackupAndRecovery\mms.exe
Message: Failed to run the task: unexpected conditions.
--------------------
Error code: 65520
Module: 0
LineInfo: bd28fdbd64edb8bc Fields:
code : 2147943726 Message: Error de inicio de sesión: nombre de usuario desconocido o contraseña incorrecta
--------------------

It is said that there is something wrong with the user or password, but i haven´t changed anything on my server.

Could you someone help me???

Thank you very much,

Robert.