ASN1 error on generated CSR

[imi415]

The CSR file generated has an invalid INTEGER (l=0) which generates errors on openssl. Error information:

Error reading certificate request in test.csr
140173603737536:error:0D0E20DE:asn1 encoding routines:c2i_ibuf:illegal zero content:crypto/asn1/a_int.c:154:
140173603737536:error:0D08303A:asn1 encoding routines:asn1_template_noexp_d2i:nested asn1 error:crypto/asn1/tasn_dec.c:609:Field=version, Type=X509_REQ_INFO
140173603737536:error:0D08303A:asn1 encoding routines:asn1_template_noexp_d2i:nested asn1 error:crypto/asn1/tasn_dec.c:609:Field=req_info, Type=X509_REQ
140173603737536:error:0906700D:PEM routines:PEM_ASN1_read_bio:ASN1 lib:crypto/pem/pem_oth.c:33:

Difference between CSRs generated by openssl and csrgenerator.com

openssl:
    0:d=0  hl=4 l=1297 cons: SEQUENCE          
    4:d=1  hl=4 l= 761 cons: SEQUENCE          
    8:d=2  hl=2 l=   1 prim: INTEGER           :00
   11:d=2  hl=2 l= 119 cons: SEQUENCE          
   13:d=3  hl=2 l=  11 cons: SET               
   15:d=4  hl=2 l=   9 cons: SEQUENCE          
   17:d=5  hl=2 l=   3 prim: OBJECT            :countryName

csrgenerator.com:
    0:d=0  hl=4 l= 699 cons: SEQUENCE          
    4:d=1  hl=4 l= 419 cons: SEQUENCE          
    8:d=2  hl=2 l=   0 prim: INTEGER           :BAD INTEGER:[]
   10:d=2  hl=2 l= 119 cons: SEQUENCE          
   12:d=3  hl=2 l=  11 cons: SET               
   14:d=4  hl=2 l=   9 cons: SEQUENCE          
   16:d=5  hl=2 l=   3 prim: OBJECT            :countryName