path	value/explanation	url	count
invalid code (1 variant(s))			1
008/00-05 (008all00)	Invalid content: '||||||'. Text '||||||' could not be parsed at index 0		1
invalid value (4 variant(s))			4
008/29 (008book29)	u		1
008/31 (008book31)	d		1
008/30 (008book30)	n		1
Leader/08 (leader08)	0		1
repetition of non-repeatable subfield (1 variant(s))			1
505$a	there are multiple instances		1