Header not contain PG line and duplicate SQ line

[manburst]

Hello
I have tried to align with command ./graphmap2/bin/Linux-x64/graphmap2 align -r ref/ecoliref.fa --gtf ref/ecoliref.gtf -d tex1/tex/call_pass/newbasecalltest/high_tex_chop_trim.fastq -o tex1/tex/call_pass/newbasecalltest/quality_graph.sam
Then I need to convert it into a bam file but it showed an error that the PG line is duplicate and also PG line is missing so I cannot convert them.
Both references were downloaded from ensembl.
Any suggestion to solve this?
Here is a screenshot from sam file output

Thanks in advance.