Login fails with 500 error

[rxnetwalker]

Describe the bug
Server responses "500 Internal Server Error".

Log from OAuth server

459,"status":302,"resp_headers":{"Expires":["Thu, 09 Mar 2023 08:35:09 GMT"],"Date":["Thu, 09 Mar 2023 08:35:09 GMT"],"Location":["http://oauth-live.deploy.goteo.org/authorize?client_id=e82891081ad1ba67e713f92508d0712a&code_challenge=JSM6CnfwwOtPlNrVx7NKn6T0WyHj2hsKnOEVpKd6mOc&code_challenge_method=S256&redirect_uri=https%3A%2F%2Fparticipa.goteo.org%2Fusers%2Fauth%2Fgoteo%2Fcallback%3Flocale%3Den&response_type=code&scope=TEST&state=f9cc542aba58376b7484f0c64f71d1312c25583cee3982d5"],"Content-Encoding":["gzip"],"Content-Type":["text/html; charset=UTF-8"],"Pragma":["no-cache"],"Set-Cookie":["PHPSESSID=domp7qk0la5lcvcnsmg8vtjsd9; path=/; httponly; samesite=lax"],"Status":["302 Found"],"Cache-Control":["max-age=0, must-revalidate, private"],"Vary":["Accept-Encoding"],"Server":["Caddy"]}}
{"level":"error","ts":1678350909.8275554,"logger":"http.log.access.log0","msg":"handled request","request":{"remote_addr":"10.0.1.15:45352","proto":"HTTP/1.0","method":"GET","host":"oauth-live.deploy.goteo.org","uri":"/authorize?client_id=e82891081ad1ba67e713f92508d0712a&code_challenge=JSM6CnfwwOtPlNrVx7NKn6T0WyHj2hsKnOEVpKd6mOc&code_challenge_method=S256&redirect_uri=https%3A%2F%2Fparticipa.goteo.org%2Fusers%2Fauth%2Fgoteo%2Fcallback%3Flocale%3Den&response_type=code&scope=TEST&state=f9cc542aba58376b7484f0c64f71d1312c25583cee3982d5","headers":{"Sec-Fetch-Dest":["document"],"Sec-Ch-Ua":["\"Google Chrome\";v=\"111\", \"Not(A:Brand\";v=\"8\", \"Chromium\";v=\"111\""],"X-Forwarded-Proto":["https"],"Connection":["close"],"Sec-Fetch-Site":["cross-site"],"Upgrade-Insecure-Requests":["1"],"Sec-Fetch-Mode":["navigate"],"Sec-Ch-Ua-Platform":["\"macOS\""],"Accept-Language":["en-GB,en-US;q=0.9,en;q=0.8"],"X-Real-Ip":["85.136.33.186"],"Cache-Control":["max-age=0"],"Sec-Fetch-User":["?1"],"Cookie":["_gcl_au=1.1.469372529.1678103957; _ga=GA1.1.430193375.1678103957; _ga_Y1B06625RJ=GS1.1.1678103956.1.0.1678103959.57.0.0; _ga_3MQ6TEZTXF=GS1.1.1678103957.1.0.1678103959.58.0.0; goteo_cookies=ok; _ga_22QMBNMQEH=GS1.1.1678209658.2.0.1678209658.0.0.0; PHPSESSID=domp7qk0la5lcvcnsmg8vtjsd9"],"X-Forwarded-For":["85.136.33.186"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"],"Sec-Ch-Ua-Mobile":["?0"],"Accept-Encoding":["gzip, deflate, br"]}},"common_log":"10.0.1.15 - - [09/Mar/2023:08:35:09 +0000] \"GET /authorize?client_id=e82891081ad1ba67e713f92508d0712a&code_challenge=JSM6CnfwwOtPlNrVx7NKn6T0WyHj2hsKnOEVpKd6mOc&code_challenge_method=S256&redirect_uri=https%3A%2F%2Fparticipa.goteo.org%2Fusers%2Fauth%2Fgoteo%2Fcallback%3Flocale%3Den&response_type=code&scope=TEST&state=f9cc542aba58376b7484f0c64f71d1312c25583cee3982d5 HTTP/1.0\" 500 525","duration":0.104447972,"size":525,"status":500,"resp_headers":{"Status":["500 Internal Server Error"],"Set-Cookie":["PHPSESSID=domp7qk0la5lcvcnsmg8vtjsd9; path=/; HttpOnly; SameSite=lax"],"Content-Encoding":["gzip"],"Vary":["Accept-Encoding"],"Server":["Caddy"],"Content-Type":["text/html; charset=UTF-8"]}}