Command failed: unzip /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015 -d /root/.cache/hydro/judger/vijos.org/XMU_ACM/1015
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015 or
        /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015.zip, and cannot find /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015.ZIP, period.

Error: Command failed: unzip /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015 -d /root/.cache/hydro/judger/vijos.org/XMU_ACM/1015
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015 or
        /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015.zip, and cannot find /root/.cache/hydro/judger/download_vijos.org_XMU_ACM_1015.ZIP, period.

    at ChildProcess.exithandler (child_process.js:294:12)
    at ChildProcess.emit (events.js:198:13)
    at maybeClose (internal/child_process.js:982:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
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