How can I solve this error?

Question

[22211020193]

#finnGen
MARKER rsids
WEIGHT N
ALLELE alt ref
EFFECT beta
PVAL pval
STDERR sebeta
FREQ af_alt

PROCESS /home/data3/wwh/meta_analysis/metal/input_file/EC/finnGen_ec.txt


#FUSCC
MARKER rsid
WEIGHT N
ALLELE EFFECT_ALLELE NON_EFFECT_ALLELE
EFFECT BETA
PVAL P
STDERR SE

PROCESS /home/data3/wwh/meta_analysis/metal/input_file/EC/fuscc_ec.txt

#UKB
MARKER rsid
WEIGHT N
ALLELE alt ref
EFFECT beta_EUR
PVAL neglog10_pval_EUR
STDERR se_EUR

PROCESS /home/data3/wwh/meta_analysis/metal/input_file/EC/ukb_ec.txt

#BBJ
MARKER rsid
WEIGHT N
ALLELE Allele2 Allele1
EFFECT BETA
PVAL p.value
STDERR SE

PROCESS /home/data3/wwh/meta_analysis/metal/input_file/EC/BBJ_ec.txt

#execute meta-analysis
OUTFILE /home/data3/wwh/meta_analysis/metal/input_file/EC/METAANALYSISEC1.TBL
ANALYZE

## ERROR: The command you issued could not be processed ...
###########################################################################
## Executing meta-analysis ...
## Complete results will be stored in file 'METAANALYSIS1.TBL'
## Column descriptions will be stored in file 'METAANALYSIS1.TBL.info'
ERROR: Failed to open output file 'METAANALYSIS1.TBL' ... 
## Clearing all stored statistics ...
# Clearing user defined filters ...

[GenoMax]

22211020193 : It is useful to add some description of what you are trying to do? Which software you are using (metal? based on the tag) and the command you are running. Please edit the post and add that.

[22211020193]

I want to conduct GWAS meta-analysis using metal software.