Greek Finance Minister Yanis Varoufakis. REUTERS/Alkis Konstantinidis

There might have been a paperwork issue in Greece.

A report from the newswire MNI, citing the German-language publication Bild Zeitung, said Greece sent Germany the wrong letter on Thursday "with the intended version going a step further accepting conditions agreed to by the previous government."

Greece has denied the report.

MNI's report added that according to Bild Zeitung, "in conversations with [Eurogroup head Jeroen] Dijsselbloem and German chancellor Angela Merkel, Tsipras described the letter as an 'administrative mistake.'"

As of 11:50 a.m. ET on Friday, a report on Bild Zeitung's website had been published under the headline of "The truth about the Greek letter."

A still from Germany's Bild homepage that says "The truth about the Greek letter: Bild exposes the cheating Athens finance minister." Bild.de

European finance ministers are in Brussels seeking to hammer out a deal on Greece's debt. The main point of contention is that Germany wants Greece to agree to an extension of its existing bailout agreement, while Greece wants there to be an entirely new program.

The initial report from MNI implied that Greece was willing to agree to those conditions from Germany but that the wrong letter was delivered.

On Thursday, leaked documents showed that Germany objected to Greece's proposal, calling its offer a "Trojan Horse."

This latest report on Friday, however, makes it seem as if that might not have been the right letter at all.