Matomo display empty page after upgrading from version 3.x to 4.6

I just upgrade matomo release from version 3.x to 4.6
I retrieved users/sites and so on
summary data seems present but when selecting a site and a period, the displayed page is empty
but when I checked the docker logs:
10.0.2.4 - 28/Jan/2022:01:40:08 +0000 “GET /index.php” 200
10.0.2.4 - 28/Jan/2022:01:41:08 +0000 “GET /index.php” 200
10.0.2.4 - 28/Jan/2022:01:41:33 +0000 “GET /index.php” 200
10.0.2.4 - 28/Jan/2022:01:41:35 +0000 “GET /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:08 +0000 “GET /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:56 +0000 “GET /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “POST /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “POST /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “POST /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “POST /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “POST /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “POST /index.php” 200
10.0.2.4 - 28/Jan/2022:01:46:57 +0000 “GET /index.php” 200

606.71 Safari/537.36" “-”
10.255.0.2 - - [28/Jan/2022:02:46:58 +0100] “GET /index.php?forceView=1&viewDataTable=VisitorLog&module=Live&action=getLastVisitsDetails&small=1&idSite=6&period=year&date=2021-04-01&showtitle=1&random=1256 HTTP/2.0” 200 74053 “https://matomo.analytics.safran/” “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36” “-”
127.0.0.1 - - [28/Jan/2022:02:47:27 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:47:57 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:48:27 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:48:57 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:49:27 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:49:58 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:50:28 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:50:58 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
10.255.0.2 - - [28/Jan/2022:02:51:08 +0100] “GET / HTTP/2.0” 200 83358 “-” “Go-http-client/2.0” “-”
127.0.0.1 - - [28/Jan/2022:02:51:28 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:51:58 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:52:28 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:52:58 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:53:29 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:53:59 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:54:29 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:54:59 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:55:29 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:55:59 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
10.255.0.2 - - [28/Jan/2022:02:56:08 +0100] “GET / HTTP/2.0” 200 83358 “-” “Go-http-client/2.0” “-”
127.0.0.1 - - [28/Jan/2022:02:56:29 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:57:00 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:57:30 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:58:00 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”
127.0.0.1 - - [28/Jan/2022:02:58:30 +0100] “GET / HTTP/1.1” 200 612 “-” “curl/7.80.0” “-”

everything seems OK in both matomo or nginx docker instance

In nginx the user defined is nginx
and in matomo the directory /var/www/html belongs to that user : nginx

The database was sucessfully migrated from version mariadb 10.3.x to to 10.6.4

Did I miss something during the upgrade please ?
Could you help ?