Vcera som si upgradoval Turris Omnia (silver) na poslednu stable verziu. Ked sa chcem prihlasit, vidim iba sedu stranku s textom:
Unexpected token ‘<’, “<?xml vers”… is not valid JSON
Ked restartujem router, tak na niekolko chvil sa viem prihlasit, ale potom zase ukaze tento error. Moze mi prosim niekto poradit?
Z jaké verze jsi vycházel (3, 4, 5, 6 ? ) ? Přeskočil si nějakou větev ? Nebude lepší čistá instalace?
Neviem ci som preskocil nejaku ciastocnu verziu, ako vzdy, videl som upozornenie, ze je nejaky update, tak som odsuhlasil, uz dost dlho som na v6, takze ziadny velky upgrade. Zaujimave je, ze ten error sa ukazuje iba niekedy, cez SSH sa do turrisu dostanem, a vsetko sa zda byt funkcne inac, zda sa to byt error but httpd alebo reForisu. Cista instalacia neprichadza do uvahy, pretoze som niekolko tisic km daleko…
Podle hledaní na webu … nějaká chyby syntaxe či poškozený soubor. Podívat se do syslogu, preventivně vyexportovat analytiky a na chvíli si je odložit.
Mechanické řešení je vrátit se pomocí schnapps v reForis na starší verzi, kde problém nebyl a nechat běžet aktualizace znova.
Snad se ozvou i chytřejší než jsem já 
Hi, i have the exact same problem.
JSON.parse: unexpected character at line 1 column 1 of the JSON data
it started out of the blue. I dont know what exact changed at the time.
I am on turris-os 6.2.3
The funny part for me is i have 2 of these devices and only one shows that error. The other one works fine.
root@turris-2:~# cat /etc/os-release
NAME=“TurrisOS”
VERSION=“6.3.2”
ID=“turrisos”
ID_LIKE=“lede openwrt”
PRETTY_NAME=“TurrisOS 6.3.2”
VERSION_ID=“6.3.2”
HOME_URL=“https://www.turris.cz/”
BUG_URL=“Issues · Turris · GitLab”
SUPPORT_URL=“Turris - Podpora”
BUILD_ID=“r16847+124-f8282da11e”
OPENWRT_BOARD=“mvebu/cortexa9”
OPENWRT_ARCH=“arm_cortex-a9_vfpv3-d16”
OPENWRT_TAINTS=“busybox”
OPENWRT_DEVICE_MANUFACTURER=“CZ.NIC”
OPENWRT_DEVICE_MANUFACTURER_URL=“https://www.turris.cz/”
OPENWRT_DEVICE_PRODUCT=“Turris Omnia”
OPENWRT_DEVICE_REVISION=“v0”
OPENWRT_RELEASE=“TurrisOS 6.3.2 f8282da11ee77c36acb1bd94c99b76ce13257ab9”
root@turris-2:~#
thanks…
Matthias
sorry i mistyped. I am on turris-os 6.3.2
Hi,
i was able to recover mine with the command line utility schnapps to manage snapshots
schnapps list
schnapps rollback
reboot
run the updates again from the web interface
thanks…
Matthias
Hi, unfortunately I have the same problem as described here and do not know how to get ahead 
Login via SSH works fine, but I cant get to the web interface > JSON.parse: unexpected character at line 1 column 1 of the JSON data
I have flashed to the latest version via medkit, but that did not help either.
root@turris:~# cat /etc/os-release
NAME="TurrisOS"
VERSION="6.3.2"
ID="turrisos"
ID_LIKE="lede openwrt"
PRETTY_NAME="TurrisOS 6.3.2"
VERSION_ID="6.3.2"
HOME_URL="https://www.turris.cz/"
BUG_URL="https://gitlab.nic.cz/groups/turris/-/issues/"
SUPPORT_URL="https://www.turris.cz/support/"
BUILD_ID="r16847+124-f8282da11e"
OPENWRT_BOARD="mvebu/cortexa9"
OPENWRT_ARCH="arm_cortex-a9_vfpv3-d16"
OPENWRT_TAINTS="busybox"
OPENWRT_DEVICE_MANUFACTURER="CZ.NIC"
OPENWRT_DEVICE_MANUFACTURER_URL="https://www.turris.cz/"
OPENWRT_DEVICE_PRODUCT="Turris Omnia"
OPENWRT_DEVICE_REVISION="v0"
OPENWRT_RELEASE="TurrisOS 6.3.2 f8282da11ee77c36acb1bd94c99b76ce13257ab9"
Try restarting the device and logging in as soon as possible. I was able to log in that way…
Yes, that just worked for me too, but surely that cant be the solution forever?
My suspicion is that there is some issue with a JSON that builds up only after a certain time from reboot … hope this will be fixed soon, really annoying