mapnik rendering error

Hallo,

ich habe gerade versucht eine Karte mit mapnik zu rendern. Allerdings bricht der Prozess immer an einer Stelle ab. Die Fehlermeldung:

Process␣Process-1:
Traceback␣(most␣recent␣call␣last):
File␣"/usr/lib64/python2.7/multiprocessing/process.py",␣line␣258,␣in␣_bootstrap
self.run()
File␣"/usr/lib64/python2.7/multiprocessing/process.py",␣line␣114,␣in␣run
self._target(*self._args,␣**self._kwargs)
File␣"./generate_tiles_multiprocess.py",␣line␣116,␣in␣loop
self.render_tile(tile_uri,␣x,␣y,␣z)
File␣"./generate_tiles_multiprocess.py",␣line␣89,␣in␣render_tile
mapnik.render(self.m,␣im)
RuntimeError:␣ERROR:␣␣function␣transliterate(text)␣does␣not␣exist
LINE␣1:␣SELECT␣transliterate(name)
^
HINT:␣␣No␣function␣matches␣the␣given␣name␣and␣argument␣types.␣You␣might␣need␣to␣add␣explicit␣type␣casts.
QUERY:␣␣SELECT␣transliterate(name)
CONTEXT:␣␣PL/pgSQL␣function␣get_localized_name_without_brackets(text,text,text,text)␣line␣16␣at␣RETURN

Full␣sql␣was:␣'SELECT␣ST_AsBinary("way")␣AS␣geom,"access","amenity","highway","historic","lock","religion","ruins","shop","tourism","waterway"␣FROM␣(select␣way,get_localized_name_without_brackets(name,"name:de",int_name,"name:en")␣as␣name,amenity,shop,tourism,highway,man_made,access,religion,waterway,lock,historic,leisure,ruins
from␣view_osmde_point
where␣amenity␣is␣not␣null
or␣shop␣is␣not␣null
or␣tourism␣in␣('alpine_hut','camp_site','caravan_site','guest_house','hostel','hotel','motel','museum','viewpoint','bed_and_breakfast','information','chalet')
or␣highway␣in␣('bus_stop','traffic_signals','ford')
or␣man_made␣in␣('mast','water_tower')
or␣historic␣in␣('memorial','archaeological_site','castle')
or␣waterway='lock'
or␣lock='yes'
or␣leisure␣in␣('playground','slipway')
)␣as␣points␣WHERE␣"way"␣&&␣ST_SetSRID('BOX3D(1816143.792055783␣6136976.126960225,1817978.280734637␣6138810.615639079)'::box3d,␣900913)'

^CTraceback␣(most␣recent␣call␣last):
File␣"./generate_tiles_multiprocess.py",␣line␣208,␣in␣<module>
render_tiles(bbox,␣mapfile,␣tile_dir,␣16,␣16)
File␣"./generate_tiles_multiprocess.py",␣line␣174,␣in␣render_tiles
queue.put(t)
File␣"/usr/lib64/python2.7/multiprocessing/queues.py",␣line␣311,␣in␣put
if␣not␣self._sem.acquire(block,␣timeout):
KeyboardInterrupt

Ich hoffe ihr könnt mir helfen. Danke schon mal im voraus.

max96