The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

[hammer065]

When requesting an attended Sysupgrade, I get an 500 server error when LuCI POSTs to https://sysupgrade.openwrt.org/api/v1/build:

{
  "detail": "The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.",
  "status": 500,
  "title": "Internal Server Error",
  "type": "about:blank"
}

The build request, which has worked in the past, is as follows:

{
    "url": "https://sysupgrade.openwrt.org",
    "revision": "r23635-03b3284805",
    "advanced_mode": "0",
    "sha256_unsigned": "",
    "branch": "SNAPSHOT",
    "efi": null,
    "profile": "linksys,e8450-ubi",
    "target": "mediatek/mt7622",
    "version": "SNAPSHOT",
    "packages": [
        "auc",
        "base-files",
        "blockd",
        "busybox",
        "ca-bundle",
        "dnsmasq",
        "dropbear",
        "ethtool",
        "firewall4",
        "fstools",
        "fwtool",
        "getrandom",
        "hostapd-common",
        "hostapd-utils",
        "ip-full",
        "iw",
        "iwinfo",
        "jansson",
        "jshn",
        "jsonfilter",
        "kernel",
        "kmod-cfg80211",
        "kmod-crypto-acompress",
        "kmod-crypto-aead",
        "kmod-crypto-ccm",
        "kmod-crypto-cmac",
        "kmod-crypto-crc32",
        "kmod-crypto-crc32c",
        "kmod-crypto-ctr",
        "kmod-crypto-gcm",
        "kmod-crypto-gf128",
        "kmod-crypto-ghash",
        "kmod-crypto-hash",
        "kmod-crypto-hmac",
        "kmod-crypto-manager",
        "kmod-crypto-null",
        "kmod-crypto-rng",
        "kmod-crypto-seqiv",
        "kmod-crypto-sha512",
        "kmod-fs-btrfs",
        "kmod-fs-exfat",
        "kmod-fs-ext4",
        "kmod-fs-f2fs",
        "kmod-fs-ntfs3",
        "kmod-fs-vfat",
        "kmod-fs-xfs",
        "kmod-gpio-button-hotplug",
        "kmod-hwmon-core",
        "kmod-leds-gpio",
        "kmod-lib-crc-ccitt",
        "kmod-lib-crc16",
        "kmod-lib-crc32c",
        "kmod-lib-lzo",
        "kmod-mac80211",
        "kmod-mt76-connac",
        "kmod-mt76-core",
        "kmod-mt7615-common",
        "kmod-mt7615-firmware",
        "kmod-mt7615e",
        "kmod-mt7622-firmware",
        "kmod-mt7915-firmware",
        "kmod-nf-conntrack",
        "kmod-nf-conntrack6",
        "kmod-nf-flow",
        "kmod-nf-log",
        "kmod-nf-log6",
        "kmod-nf-nat",
        "kmod-nf-reject",
        "kmod-nf-reject6",
        "kmod-nfnetlink",
        "kmod-nft-core",
        "kmod-nft-fib",
        "kmod-nft-nat",
        "kmod-nft-offload",
        "kmod-nls-cp437",
        "kmod-nls-iso8859-1",
        "kmod-nls-utf8",
        "kmod-ppp",
        "kmod-pppoe",
        "kmod-pppox",
        "kmod-slhc",
        "kmod-usb-storage-extras",
        "kmod-usb-storage-uas",
        "kmod-usb3",
        "libblobmsg-json",
        "libc",
        "libiwinfo",
        "libiwinfo-data",
        "libjson-c",
        "libjson-script",
        "libmbedtls",
        "libmnl",
        "libnftnl",
        "libnl-tiny",
        "libubox",
        "libubus",
        "libuci",
        "libuclient",
        "libucode",
        "libustream-mbedtls",
        "lldpd",
        "logd",
        "luci",
        "luci-app-attendedsysupgrade",
        "luci-app-wol",
        "luci-i18n-attendedsysupgrade-de",
        "luci-i18n-base-de",
        "luci-i18n-firewall-de",
        "luci-i18n-opkg-de",
        "luci-i18n-wol-de",
        "luci-theme-openwrt-2020",
        "mtd",
        "netifd",
        "nftables-json",
        "odhcp6c",
        "odhcpd-ipv6only",
        "openwrt-keyring",
        "opkg",
        "ppp",
        "ppp-mod-pppoe",
        "procd",
        "procd-seccomp",
        "procd-ujail",
        "tc-full",
        "ubi-utils",
        "uboot-envtools",
        "ubox",
        "ubus",
        "ubusd",
        "uci",
        "uclient-fetch",
        "ucode",
        "ucode-mod-fs",
        "ucode-mod-ubus",
        "ucode-mod-uci",
        "urandom-seed",
        "urngd",
        "usign",
        "wireless-regdb",
        "wpad-mbedtls"
    ],
    "diff_packages": true,
    "filesystem": "squashfs",
    "client": "luci/git-23.132.65998-fa9fb2f"
}

[illumiN8i]

There may still be an issue. The build queue seems to be stuck at 92 and and isn't decreasing.