error in build docker

Hi everyone
I get an error when building docker and unfortunately I don't know what the problem is. The error is:
~/ESCOMP-Containers/CESM/2.1$ docker build .
[+] Building 559.2s (8/14)
=> [internal] load .dockerignore 0.1s
=> => transferring context: 2B 0.0s
=> [internal] load build definition from Dockerfile 0.1s
=> => transferring dockerfile: 1.71kB 0.0s
=> [internal] load metadata for docker.io/escomp/base-centos8:latest 1.9s
=> [auth] escomp/base-centos8:pull token for registry-1.docker.io 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 263B 0.0s
=> [1/9] FROM docker.io/escomp/base-centos8@sha256:2e8185f9551ed45dd21df6701856580221e9fc81f22f3cb0651054262245bd44 0.0s
=> CACHED [2/9] COPY Files/ea002e626aee6bc6643e8ab5f998e5e4 /root/.subversion/auth/svn.ssl.server/ 0.0s
=> ERROR [3/9] RUN mkdir -p /opt/ncar && cd /opt/ncar && git clone -b release-cesm2.1.3 https://github.com/E 557.0s
------
> [3/9] RUN mkdir -p /opt/ncar && cd /opt/ncar && git clone -b release-cesm2.1.3 https://github.com/ESCOMP/CESM.git cesm2 && cd cesm2 && ./manage_externals/checkout_externals:
#0 0.414 Cloning into 'cesm2'...
#0 53.52 Note: checking out '0596a9760428fb3155310064678f1c7b424d504f'.
#0 53.52
#0 53.52 You are in 'detached HEAD' state. You can look around, make experimental
#0 53.52 changes and commit them, and you can discard any commits you make in this
#0 53.52 state without impacting any branches by performing another checkout.
#0 53.52
#0 53.52 If you want to create a new branch to retain commits you create, you may
#0 53.52 do so (now or later) by using -b with the checkout command again. Example:
#0 53.52
#0 53.52 git checkout -b
#0 53.52
#0 53.72 Processing externals description file : Externals.cfg
#0 53.72 Checking status of externals: cam, cice, cime, cism, clm, mosart, pop, rtm, ww3,
#0 53.72 Checking out externals: cam, cice, cime, cism, clm, mosart, pop, rtm, ww3,
#0 555.7 Processing externals description file : Externals_CAM.cfg
#0 555.7 Checking out externals: chem_proc, ERROR:root:Command '['svn', 'checkout', '--quiet', 'https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel', '/opt/ncar/cesm2/components/cam/chem_proc']' returned non-zero exit status 1.
#0 556.6 ERROR:root:Failed with output:
#0 556.6 svn: E170013: Unable to connect to a repository at URL 'https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel'
#0 556.6 svn: E230001: Server SSL certificate verification failed: issuer is not trusted
#0 556.6
#0 556.6 ERROR: In directory
#0 556.6 /opt/ncar/cesm2
#0 556.6 Process did not run successfully; returned status 1:
#0 556.6 svn checkout --quiet https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel /opt/ncar/cesm2/components/cam/chem_proc
#0 556.6 See above for output from failed command.
#0 556.6
#0 556.6 ERROR:root:Failed with output:
#0 556.6 svn: E170013: Unable to connect to a repository at URL 'https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel'
#0 556.6 svn: E230001: Server SSL certificate verification failed: issuer is not trusted
#0 556.6
#0 556.6 ERROR: In directory
#0 556.6 /opt/ncar/cesm2
#0 556.6 Process did not run successfully; returned status 1:
#0 556.6 svn checkout --quiet https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel /opt/ncar/cesm2/components/cam/chem_proc
#0 556.6 See above for output from failed command.
#0 556.6
#0 556.6
#0 556.6 ERROR: Failed with output:
#0 556.6 svn: E170013: Unable to connect to a repository at URL 'https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel'
#0 556.6 svn: E230001: Server SSL certificate verification failed: issuer is not trusted
#0 556.6
#0 556.6 ERROR: In directory
#0 556.6 /opt/ncar/cesm2
#0 556.6 Process did not run successfully; returned status 1:
#0 556.6 svn checkout --quiet https://svn-ccsm-models.cgd.ucar.edu/tools/proc_atm/chem_proc/release_tags/chem_proc5_0_03_rel /opt/ncar/cesm2/components/cam/chem_proc
#0 556.6 See above for output from failed command.
#0 556.6
------
Dockerfile:10
--------------------
9 | COPY Files/ea002e626aee6bc6643e8ab5f998e5e4 /root/.subversion/auth/svn.ssl.server/
10 | >>> RUN mkdir -p /opt/ncar && \
11 | >>> cd /opt/ncar && \
12 | >>> git clone -b release-cesm2.1.3 https://github.com/ESCOMP/CESM.git cesm2 && \
13 | >>> cd cesm2 && \
14 | >>> ./manage_externals/checkout_externals
15 |
--------------------
ERROR: failed to solve: process "/bin/sh -c mkdir -p /opt/ncar && cd /opt/ncar && git clone -b release-cesm2.1.3 https://github.com/ESCOMP/CESM.git cesm2 && cd cesm2 && ./manage_externals/checkout_externals" did not complete successfully: exit code: 1
:~/ESCOMP-Containers/CESM/2.1$

I would be grateful if you guided me through this.