When I click "email PDF" on the sales invoice I receive an error message:

SIN003349 - SendEmail failed. First exception on row 0; first error: STRING_TOO_LONG, Content Type: data value too large: application/pdf; name="=?ISO-8859-1?B?QlNIIEV2IEFsZXRsZXJpIFNhbmF5aSB2ZSBUaWM=?= =?ISO-8859-1?B?YXJldCBBLj8uIEludm9pY2VTSU4wMDMzNDkucGRm?=" (max length=120): [ContentType]

When I click create invoice, I get an error message saying "Value for c2g__Dimension1__c from record a7124000000GoBaAAK does not reference an existing record." 

When I click create invoice, I get an error message saying "Value for c2g__Dimension1__c from record a7124000000GoBaAAK does not reference an existing record."