Cloudflare Access SSO integration with Bitwarden SSO


i tried to use Cloudflare Zero Trust (Cloudflare Access) without success.
It show always this Error. Has anybody a solution for this?

Exception thrown while reading 'AttributeValue' for Saml2SecurityToken. Inner exception: 'System.Xml.XmlException: 'Element' is an invalid XmlNodeType. Line 31, position 12. at System.Xml.XmlReader.ReadEndElement() at Microsoft.IdentityModel.Tokens.Saml2.Saml2Serializer.ReadAttributeValue(XmlDictionaryReader reader, Saml2Attribute attribute)