pkcs12 export not working

[fastchain]

Hello,
when I try to export with openssl pkcs12 I get this

...
lemur-1     | 2024-03-21 04:23:25,559 INFO sqlalchemy.engine.base.Engine SELECT certificates.id AS certificates_id, certificates.external_id AS certificates_external_id, certificates.owner AS certificates_owner, certificates.name AS certificates_name, certificates.description AS certificates_description, certificates.notify AS certificates_notify, certificates.body AS certificates_body, certificates.chain AS certificates_chain, certificates.csr AS certificates_csr, certificates.private_key AS certificates_private_key, certificates.issuer AS certificates_issuer, certificates.serial AS certificates_serial, certificates.cn AS certificates_cn, certificates.deleted AS certificates_deleted, certificates.dns_provider_id AS certificates_dns_provider_id, certificates.not_before AS certificates_not_before, certificates.not_after AS certificates_not_after, certificates.date_created AS certificates_date_created, certificates.signing_algorithm AS certificates_signing_algorithm, certificates.status AS certificates_status, certificates.bits AS certificates_bits, certificates.san AS certificates_san, certificates.rotation AS certificates_rotation, certificates.user_id AS certificates_user_id, certificates.authority_id AS certificates_authority_id, certificates.root_authority_id AS certificates_root_authority_id, certificates.rotation_policy_id AS certificates_rotation_policy_id, certificates.key_type AS certificates_key_type 
lemur-1     | FROM certificates 
lemur-1     | WHERE certificates.id = %(param_1)s
lemur-1     | 2024-03-21 04:23:25,559 INFO sqlalchemy.engine.base.Engine {'param_1': 3}
lemur-1     | [2024-03-21 04:23:25,573] DEBUG in plugin: ['openssl', 'pkcs12', '-export', '-name', 'bbb@bbb.bb', '-in', '/tmp/tmpprcz38_i', '-inkey', '/tmp/tmpnp7gw0zo', '-out', '/tmp/k78etn62', '-password', 'pass:u9TolSf)4qh@4BRMGo&2YdFl']
lemur-1     | ['openssl', 'pkcs12', '-export', '-name', 'bbb@bbb.bb', '-in', '/tmp/tmpprcz38_i', '-inkey', '/tmp/tmpnp7gw0zo', '-out', '/tmp/k78etn62', '-password', 'pass:u9TolSf)4qh@4BRMGo&2YdFl']
lemur-1     | ['openssl', 'pkcs12', '-export', '-name', 'bbb@bbb.bb', '-in', '/tmp/tmpprcz38_i', '-inkey', '/tmp/tmpnp7gw0zo', '-out', '/tmp/k78etn62', '-password', 'pass:u9TolSf)4qh@4BRMGo&2YdFl']
lemur-1     | [2024-03-21 04:23:25,578] DEBUG in plugin: openssl pkcs12 -export -name bbb@bbb.bb -in /tmp/tmpprcz38_i -inkey /tmp/tmpnp7gw0zo -out /tmp/k78etn62 -password pass:u9TolSf)4qh@4BRMGo&2YdFl
lemur-1     | openssl pkcs12 -export -name bbb@bbb.bb -in /tmp/tmpprcz38_i -inkey /tmp/tmpnp7gw0zo -out /tmp/k78etn62 -password pass:u9TolSf)4qh@4BRMGo&2YdFl
lemur-1     | openssl pkcs12 -export -name bbb@bbb.bb -in /tmp/tmpprcz38_i -inkey /tmp/tmpnp7gw0zo -out /tmp/k78etn62 -password pass:u9TolSf)4qh@4BRMGo&2YdFl
lemur-1     | [2024-03-21 04:23:25,579] ERROR in plugin: b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | [2024-03-21 04:23:25,579] DEBUG in utils: No file /tmp/k78etn62
lemur-1     | No file /tmp/k78etn62
lemur-1     | No file /tmp/k78etn62
lemur-1     | [2024-03-21 04:23:25,579] ERROR in schema: b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | Traceback (most recent call last):
lemur-1     |   File "/opt/lemur/lemur/common/schema.py", line 158, in decorated_function
lemur-1     |     resp = f(*args, **kwargs)
lemur-1     |   File "/opt/lemur/lemur/certificates/views.py", line 1569, in post
lemur-1     |     extension, passphrase, data = plugin.export(
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 167, in export
lemur-1     |     create_pkcs12(body, chain, output_tmp, key, alias, passphrase)
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 103, in create_pkcs12
lemur-1     |     run_process(
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 34, in run_process
lemur-1     |     raise Exception(stderr)
lemur-1     | Exception: b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | Traceback (most recent call last):
lemur-1     |   File "/opt/lemur/lemur/common/schema.py", line 158, in decorated_function
lemur-1     |     resp = f(*args, **kwargs)
lemur-1     |   File "/opt/lemur/lemur/certificates/views.py", line 1569, in post
lemur-1     |     extension, passphrase, data = plugin.export(
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 167, in export
lemur-1     |     create_pkcs12(body, chain, output_tmp, key, alias, passphrase)
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 103, in create_pkcs12
lemur-1     |     run_process(
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 34, in run_process
lemur-1     |     raise Exception(stderr)
lemur-1     | Exception: b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | Traceback (most recent call last):
lemur-1     |   File "/opt/lemur/lemur/common/schema.py", line 158, in decorated_function
lemur-1     |     resp = f(*args, **kwargs)
lemur-1     |   File "/opt/lemur/lemur/certificates/views.py", line 1569, in post
lemur-1     |     extension, passphrase, data = plugin.export(
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 167, in export
lemur-1     |     create_pkcs12(body, chain, output_tmp, key, alias, passphrase)
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 103, in create_pkcs12
lemur-1     |     run_process(
lemur-1     |   File "/opt/lemur/lemur/plugins/lemur_openssl/plugin.py", line 34, in run_process
lemur-1     |     raise Exception(stderr)
lemur-1     | Exception: b'unable to load certificates\n132074280334656:error:0908F070:PEM routines:get_header_and_data:short header:../crypto/pem/pem_lib.c:812:\n'
lemur-1     | 2024-03-21 04:23:25,582 INFO sqlalchemy.engine.base.Engine ROLLBACK
nginx-1     | 172.18.0.1 - - [21/Mar/2024:04:23:25 +0000] "POST /api/1/certificates/3/export HTTP/1.1" 500 157 "https://localhost:447/" "Mozilla/5.0 (X11; Linux x86_64; rv:123.0) Gecko/20100101 Firefox/123.0"
lemur-1     | 2024-03-21 04:23:36,093 INFO sqlalchemy.engine.base.Engine SELECT 1;
...

Is it a bug or I'm doing something wrong?