While loading the manage configure page, it is not loading fully and also I am not seeing save/apply button

Plugins used in system 

Jenkins: 2.397
OS: Linux - 4.19.0-23-cloud-amd64
Java: 11.0.10 - AdoptOpenJDK (OpenJDK 64-Bit Server VM)
—
Parameterized-Remote-Trigger:3.1.6.3
ServiceNowRequest:1.2
URLSCM:1.6
ace-editor:1.1
active-directory:2.30
ansible:174.vfd5323d2b_9d8
ansicolor:1.0.2
ant:481.v7b_09e538fcca
antisamy-markup-formatter:159.v25b_c67cd35fb_
apache-httpcomponents-client-4-api:4.5.14-150.v7a_b_9d17134a_5
apache-httpcomponents-client-5-api:5.2.1-1.0
artifactory:3.18.0
atlassian-bitbucket-server-integration:3.3.2
audit-trail:333.vb_e1b_b_0f1238c
authentication-tokens:1.4
aws-credentials:191.vcb_f183ce58b_9
aws-java-sdk-ec2:1.12.406-374.v4cdf53953691
aws-java-sdk-ecr:1.12.406-374.v4cdf53953691
aws-java-sdk-minimal:1.12.406-374.v4cdf53953691
backup:1.6.1
bitbucket:223.vd12f2bca5430
bitbucket-oauth:0.13
blackduck-detect:8.0.0
bootstrap4-api:4.6.0-5
bootstrap5-api:5.2.2-1
bouncycastle-api:2.27
branch-api:2.1071.v1a_188a_562481
browserstack-integration:1.2.8
build-name-setter:2.2.0
build-publisher:1.22
build-timeout:1.28
build-user-vars-plugin:1.9
caffeine-api:2.9.3-65.v6a_47d0f4d1fe
checks-api:2.0.0
cloudbees-bitbucket-branch-source:800.va_b_b_9a_a_5035c1
cloudbees-folder:6.815.v0dd5a_cb_40e0e
cobertura:1.17
code-coverage-api:4.0.2
command-launcher:90.v669d7ccb_7c31
commons-httpclient3-api:3.1-3
commons-lang3-api:3.12.0-36.vd97de6465d5b_
commons-text-api:1.10.0-36.vc008c8fcda_7b_
conditional-buildstep:1.4.2
config-autorefresh-plugin:1.0
config-file-provider:3.11.1
configuration-as-code:1616.v11393eccf675
convert-to-pipeline:1.0
copyartifact:686.v6fd37018d7c2
credentials:1224.vc23ca_a_9a_2cb_0
credentials-binding:523.vd859a_4b_122e6
customize-build-now:1.1
cvs:2.19.1
data-tables-api:1.13.3-2
date-parameter:0.0.4
delivery-pipeline-plugin:1.4.2
deploy:1.16
display-url-api:2.3.7
docker-build-publish:1.4.0
docker-build-step:2.9
docker-commons:419.v8e3cd84ef49c
docker-java-api:3.2.13-68.va_875df25a_b_45
docker-workflow:563.vd5d2e5c4007f
durable-task:504.vb10d1ae5ba2f
echarts-api:5.4.0-2
email-ext:2.95
envinject:2.901.v0038b_6471582
envinject-api:1.199.v3ce31253ed13
extended-choice-parameter:359.v35dcfdd0c20d
extended-read-permission:3.2
external-monitor-job:203.v683c09d993b_9
favorite:2.4.1
font-awesome-api:6.3.0-1
forensics-api:2.0.1
fortify:22.1.38
fortify-on-demand-uploader:7.1.2
git:5.0.0
git-client:4.2.0
git-parameter:0.9.18
git-server:99.va_0826a_b_cdfa_d
github:1.37.0
github-api:1.303-417.ve35d9dd78549
github-branch-source:1703.vd5a_2b_29c6cdc
global-variable-string-parameter:1.2
google-compute-engine:4.3.14
google-container-registry-auth:0.3
google-oauth-plugin:1.0.8
gradle:2.3.2
greenballs:1.15.1
groovy:453.vcdb_a_c5c99890
handlebars:3.0.8
handy-uri-templates-2-api:2.1.8-22.v77d5b_75e6953
hidden-parameter:94.ve2cefce14d3f
htmlpublisher:1.31
http_request:1.16
icon-shim:3.0.0
instance-identity:142.v04572ca_5b_265
ionicons-api:45.vf54fca_5d2154
ivy:2.4
jackson2-api:2.14.2-319.v37853346a_229
jacoco:3.3.3
jakarta-activation-api:2.0.1-3
jakarta-mail-api:2.0.1-3
javadoc:226.v71211feb_e7e9
javax-activation-api:1.2.0-6
javax-mail-api:1.6.2-9
jaxb:2.3.8-1
jdk-tool:63.v62d2fd4b_4793
jenkinsStormPlugin:1.0.139
jersey2-api:2.39.1-1
jira:3.9
jjwt-api:0.11.5-77.v646c772fddb_0
jnr-posix-api:3.1.16-2
job-import-plugin:3.6
jobConfigHistory:1207.vd28a_54732f92
jquery:1.12.4-1
jquery-detached:1.2.1
jquery-ui:1.0.2
jquery3-api:3.6.4-1
jsch:0.1.55.61.va_e9ee26616e7
junit:1189.v1b_e593637fa_e
ldap:671.v2a_9192a_7419d
lockable-resources:1131.vb_7c3d377e723
mailcommander:1.0.0
mailer:448.v5b_97805e3767
mapdb-api:1.0.9-28.vf251ce40855d
mask-passwords:150.vf80d33113e80
matrix-auth:3.1.6
matrix-project:785.v06b_7f47b_c631
maven-plugin:3.21
mercurial:1260.vdfb_723cdcc81
mina-sshd-api-common:2.9.2-62.v199162f0a_2f8
mina-sshd-api-core:2.9.2-62.v199162f0a_2f8
momentjs:1.1.1
multiple-scms:0.8
nexus-artifact-uploader:2.14
nodejs:1.6.0
oauth-credentials:0.5
okhttp-api:4.10.0-132.v7a_7b_91cef39c
pam-auth:1.10
parameterized-scheduler:1.2
parameterized-trigger:2.45
periodicbackup:2.0
pipeline-build-step:487.va_823138eee8b_
pipeline-github-lib:42.v0739460cda_c4
pipeline-graph-analysis:202.va_d268e64deb_3
pipeline-groovy-lib:629.vb_5627b_ee2104
pipeline-input-step:466.v6d0a_5df34f81
pipeline-milestone-step:111.v449306f708b_7
pipeline-model-api:2.2125.vddb_a_44a_d605e
pipeline-model-declarative-agent:1.1.1
pipeline-model-definition:2.2125.vddb_a_44a_d605e
pipeline-model-extensions:2.2125.vddb_a_44a_d605e
pipeline-rest-api:2.31
pipeline-stage-step:305.ve96d0205c1c6
pipeline-stage-tags-metadata:2.2125.vddb_a_44a_d605e
pipeline-stage-view:2.31
pipeline-utility-steps:2.15.1
plain-credentials:143.v1b_df8b_d3b_e48
plugin-util-api:3.1.0
poll-mailbox-trigger-plugin:1.026
popper-api:1.16.1-3
popper2-api:2.11.6-2
prism-api:1.29.0-3
promoted-builds:892.vd6219fc0a_efb
publish-over:0.22
publish-over-ssh:1.24
pubsub-light:1.17
rebuild:1.34
remote-file:1.23
resource-disposer:0.21
role-strategy:587.588.v850a_20a_30162
run-condition:1.5
saml:4.385.v4dea_91565e9d
schedule-build:422.v5340de213c7e
scm-api:631.v9143df5b_e4a_a
script-security:1229.v4880b_b_e905a_6
simple-theme-plugin:146.v0e67db_a_9052e
skip-certificate-check:1.1
snakeyaml-api:1.33-95.va_b_a_e3e47b_fa_4
sonar:2.15
sonar-quality-gates:1.3.1
sse-gateway:1.26
ssh:2.6.1
ssh-credentials:305.v8f4381501156
ssh-slaves:2.877.v365f5eb_a_b_eec
sshd:3.275.v9e17c10f2571
structs:324.va_f5d6774f3a_d
subversion:2.17.1
svnmerge:2.6
svnpublisher:0.1
terraform:1.0.10
thinBackup:1.17
timestamper:1.23
token-macro:321.vd7cc1f2a_52c8
trilead-api:2.84.v72119de229b_7
uno-choice:2.6.4
validating-string-parameter:2.8
variant:59.vf075fe829ccb
windows-slaves:1.8.1
workflow-aggregator:596.v8c21c963d92d
workflow-api:1208.v0cc7c6e0da_9e
workflow-basic-steps:1010.vf7a_b_98e847c1
workflow-cps:3641.vf58904a_b_b_5d8
workflow-cps-global-lib:609.vd95673f149b_b
workflow-durable-task-step:1234.v019404b_3832a
workflow-job:1284.v2fe8ed4573d4
workflow-multibranch:733.v109046189126
workflow-scm-step:408.v7d5b_135a_b_d49
workflow-step-api:639.v6eca_cd8c04a_a_
workflow-support:839.v35e2736cfd5c
ws-cleanup:0.44