zlib error when trying to write many things in an async function

**Code:**

https://pastebin.com/RZjLU1WA

**Error:**

``{ Error: unexpected end of file
at Zlib.zlibOnError [as onerror] (zlib.js:164:17)
at Inflate._processChunk (/home/branch/node_modules/pngjs/lib/sync-inflate.js:110:28)
at zlibBufferSync (/home/branch/node_modules/pngjs/lib/sync-inflate.js:151:17)
at inflateSync (/home/branch/node_modules/pngjs/lib/sync-inflate.js:155:10)
at module.exports (/home/branch/node_modules/pngjs/lib/parser-sync.js:85:20)
at Object.exports.read [as image/png] (/home/branch/node_modules/pngjs/lib/png-sync.js:10:10)
at Jimp.parseBitmap (/home/branch/node_modules/@jimp/core/dist/utils/image-bitmap.js:196:53)
at Jimp.parseBitmap (/home/branch/node_modules/@jimp/core/dist/index.js:431:32) at /home/branch/node_modules/@jimp/core/dist/index.js:373:15
at FSReqWrap.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3) errno: -5, code: 'Z_BUF_ERROR', methodName: 'constructor' }``