Lots of errors with ONLYOFFICE

Hi,
I am getting a lot of errors in the log regarding ONLYOFFICE.
I have installed the default ONLYOFFICE app. v.4.3.0
On Nextcloud 19.0
It seems that the conversion routine is not able to convert certain parts of documents.

Any help is appreciated!

And I have flushed already: ./occ documentserver:flush

The error(s):
OCA\DocumentServer\Document\DocumentConversionException: namespace error : Namespace prefix wp14 on sizeRelH is not defined /drawingml/2006/main"/></wp:cNvGraphicFramePr><wp14:sizeRelH relativeFrom=“page” ^ namespace error : Namespace prefix wp14 on pctWidth is not defined /main"/></wp:cNvGraphicFramePr><wp14:sizeRelH relativeFrom=“page”><wp14:pctWidth ^ namespace error : Namespace prefix wp14 on sizeRelV is not defined p14:pctWidth>0</wp14:pctWidth></wp14:sizeRelH><wp14:sizeRelV relativeFrom=“page” ^ namespace error : Namespace prefix wp14 on pctHeight is not defined wp14:pctWidth></wp14:sizeRelH><wp14:sizeRelV relativeFrom=“page”><wp14:pctHeight ^

/var/www/html/custom_apps/documentserver_community/lib/DocumentConverter.php - line 123:

OCA\DocumentServer\Document\ConverterBinary->run("/tmp/oc_tmp_7cFkhL-.xml", null)

/var/www/html/custom_apps/documentserver_community/lib/DocumentConverter.php - line 78:

OCA\DocumentServer\DocumentConverter->runCommand(OCA\Document ... {})

/var/www/html/custom_apps/documentserver_community/lib/Document/DocumentStore.php - line 151:

OCA\DocumentServer\DocumentConverter->saveChanges("*** sensiti ... *", [ "78;AgAAAD ... "], "/var/www/ht ... x", "docx")

/var/www/html/custom_apps/documentserver_community/lib/LocalAppData.php - line 100:

OCA\DocumentServer\Document\DocumentStore->OCA\DocumentServer\Document\{closure}("*** sensiti ... *")

/var/www/html/custom_apps/documentserver_community/lib/Document/DocumentStore.php - line 164:

OCA\DocumentServer\LocalAppData->getReadWriteLocalPath(OC\Files\Sim ... {}, Closure {})

/var/www/html/custom_apps/documentserver_community/lib/Document/SaveHandler.php - line 56:

OCA\DocumentServer\Document\DocumentStore->saveChanges(658614119, [ OCA\Docume ... }])

/var/www/html/custom_apps/documentserver_community/lib/BackgroundJob/Cleanup.php - line 69:

OCA\DocumentServer\Document\SaveHandler->flushChanges(658614119)

/var/www/html/lib/public/BackgroundJob/Job.php - line 80:

OCA\DocumentServer\BackgroundJob\Cleanup->run(null)

/var/www/html/cron.php - line 126:

OCP\BackgroundJob\Job->execute(OC\BackgroundJob\JobList {}, OC\Log {})