BibTex citation file issue OJS 3.1.1.2

Software Support
1

We exported BibTex file from OJS 3.1.1.2.I tried to import it in Jabref (jabref.org) BibTex tool and I have got error message:

  1. Error occurred when parsing entry: ‘Error in line 1: EOF in mid-string’. Skipped entry.
    I tried to import in CiteULike and I again have got error message
    2018-08-07%2009_42_51-CiteULike_%20Import%20to%20My%20library
    I suppose this is parsing error. Please advise how to correct this.