Invalid document would you like to save

In collections

Invalid Document Would You like to Save.

ID	Label	Size	Mimetype	Created
RELS-EXT	Fedora Object to Object Relationship Metadata.	981 B	application/rdf+xml	2019-06-12
MODS	MODS Record	1.23 KiB	application/xml	2016-09-15
DC	DC Record	511 B	text/xml	2016-09-15
OBJ	invaliddocsave.png	22.8 KiB	image/png	2016-09-15
TECHMD	TECHMD	3.49 KiB	application/xml	2016-09-15
TN	TN	14.21 KiB	image/png	2016-09-15
MEDIUM_SIZE	MEDIUM_SIZE	52.06 KiB	image/png	2016-09-15
POLICY	XACML Policy Stream	12.22 KiB	application/xml	2019-06-12