Something broke

TypeError: fetch() URL is invalid
    at fetch (unknown)
    at <anonymous> (/app/.output/server/_ssr/writing-CNBgIBlG.mjs:21:21)
    at load (/app/.output/server/_libs/solid-js.mjs:450:44)
    at createResource (/app/.output/server/_libs/solid-js.mjs:485:41)
    at createAsync (/app/.output/server/_ssr/createAsync-I0PU2BYl.mjs:10:15)
    at Writing (/app/.output/server/_ssr/writing-CNBgIBlG.mjs:20:17)
    at createComponent (/app/.output/server/_libs/solid-js.mjs:285:13)
    at <anonymous> (/app/.output/server/_libs/solid-js.mjs:191:26)
    at <anonymous> (/app/.output/server/_libs/solid-js.mjs:152:48)
    at createMemo (/app/.output/server/_libs/solid-js.mjs:78:7)