Cannot install modules

I’m getting this error in logs.

No Node version was specified; we are using default version 10. You can change this in package.json: https://glitch.com/help/node/

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node v10.15.3, with pnpm

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Installing...

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ERROR  duplicated mapping key at line 4564, column 7:

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http-proxy-agent: 3.0.1

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^

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at generateError /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:165 return new YAMLException(

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at throwError /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:171 throw generateError(stat…

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at storeMappingPair /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:308 throwError(state, 'dupli…

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at readBlockMapping /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1071 storeMappingPair(state, …

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at composeNode /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1332 readBlockMapping(state, …

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at readBlockMapping /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1062 if (composeNode(state, n…

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at composeNode /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1332 readBlockMapping(state, …

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at readBlockMapping /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1062 if (composeNode(state, n…

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at composeNode /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1332 readBlockMapping(state, …

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at readBlockMapping /opt/nvm/versions/node/v10.15.3/lib/node_modules/pnpm/lib/node_modules/js-yaml/lib/js-yaml/loader.js:1062 if (composeNode(state, n…