houdini ¿Mantra? ; Failed to save output to file "Traceback

[oriVFX]

Good afternoon for everybody, i'm Spanish and my english its very bad, sorry...
I'm writting because i have a problem in Houdini.
The problem is; When i'm running de Mantra render in a specific project (in other projects 
it doesn't happen), it appears this in the View Port;

Error 
Failed to save output to file "Traceback (most recent call last):

On the other hand pressing Mantra "cautions icon" (in the radial of any node) shows me this:

Error 
Failed to save output to file "Traceback (most recent call last):
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.462/houdini/soho/python2.7/IFD.py", line 104, in <module>
if not soho.initialize(now, camera, options):
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.462/houdini/soho/python2.7\soho.py", line 204, in initialize
_registerWranglers()
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.462/houdini/soho/python2.7\soho.py", line 171, in _registerWranglers
path_pattern = unicode(path_pattern)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 102: ordinal not in range(128)
". 

Could you help me please, im working in a Houdini FX Master and no have so much time to deliver the project...

Before anything thanks to everyone!