Validator ION_MODE not found

[ksjewell]

Greetings, I have the following error from Validator, which I do not understand:

Jewell@r:~/MassBankEurope/MassBank-data$ ./.scripts/validate.sh BfG_Koblenz/
Validator version: 2.1.8
07:12:39.175 ERROR massbank.cli.Validator - ION_MODE  expected
07:12:39.179 ERROR massbank.cli.Validator - AC$MASS_SPECTROMETRY: IONIZATION ESI
07:12:39.184 ERROR massbank.cli.Validator -                       ^
07:12:39.184 ERROR massbank.cli.Validator - Error in 'BfG_Koblenz/BFG00001.txt'.

This seems odd to me, since the file I want to upload contains the ION_MODE tag.

ACCESSION: BFG00001
RECORD_TITLE: Carbamazepine; LC-ESI-QTOF; MS2; CE=35 V +/- 15; [M+H]+
DATE: 2021.02.25
AUTHORS: Kevin Jewell, Björn Ehlig, Franziska Thron, Michael Schlüsener, Arne Wick, Aquatic Chemistry, Federal Institute of Hydrology (BfG)
LICENSE: CC BY NC SA
COPYRIGHT: Copyright (C) 2020, BfG, Koblenz, Germany
COMMENT: CONFIDENCE standard compound
COMMENT: BfG_01 111
CH$NAME: Carbamazepine
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C15H12N2O
CH$EXACT_MASS: 236.095
CH$SMILES: NC(=O)N1c2ccccc2C=Cc3ccccc13
CH$IUPAC: InChI=1S/C15H12N2O/c16-15(18)17-13-7-3-1-5-11(13)9-10-12-6-2-4-8-14(12)17/h1-10H,(H2,16,18)
CH$LINK: CAS 298-46-4
CH$LINK: CHEBI 3387
CH$LINK: KEGG C06868
CH$LINK: PUBCHEM CID:2554
CH$LINK: INCHIKEY FFGPTBGBLSHEPO-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 2457
AC$INSTRUMENT: TripleTOF 5600 SCIEX
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE Q
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 35 V +/- 15
AC$CHROMATOGRAPHY: COLUMN_NAME Zorbax Eclipse C18, 3.5 um, 150 mm x 2.1 mm, Agilent
AC$CHROMATOGRAPHY: FLOW_GRADIENT 98/2 at 0 min, 98/2 at 1 min, 80/20 at 2 min, 0/100 at 16.5 min, 0/100 at 22 min, 98/2 at 22.1 min, 98/2 at 27 min
AC$CHROMATOGRAPHY: FLOW_RATE 300 ul/min
AC$CHROMATOGRAPHY: RETENTION_TIME 8.870 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B acetonitrile with 0.1% formic acid
MS$FOCUSED_ION: BASE_PEAK 237.1024
MS$FOCUSED_ION: PRECURSOR_M/Z 237.1022
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$DATA_PROCESSING: RECALIBRATE loess on assigned fragments and MS1
MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included
MS$DATA_PROCESSING: WHOLE RMassBank 2.3.1
PK$SPLASH: splash10-0z00000000-b0610ffbd5df0b1b7a95
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  89.0405 C7H5+ 1 89.0386 21.98
  91.0548 C7H7+ 1 91.0542 6.74
  116.0482 C8H6N+ 3 116.0495 -10.95
  117.0562 C8H7N+ 3 117.0573 -9.45
  139.0545 C11H7+ 2 139.0542 2.3
  151.0543 C12H7+ 2 151.0542 0.38
  152.0613 C12H8+ 2 152.0621 -4.7
  164.0614 C13H8+ 2 164.0621 -4.23

Any ideas what I am not seeing?

Best regards, Kevin