It happens when atrying to modify the profil photo from the top right menu.
From the profil menu, it show a broken link and no way to upload the new photo.
I had to delete the old one (not shown but a broken image link) by clicking on the trashbin icon and then was able to upload a new one.

Voici le contenu du log:
2020-12-25 10:26:35.958 ===== TRACE =====
2020-12-25 10:26:35.958 ===== TRACE ===== =====================================
2020-12-25 10:26:35.959 ===== TRACE =====
2020-12-25 10:26:35.959 ===== TRACE ===== DataBase actual Version = V8.6.6
2020-12-25 10:26:35.960 ===== TRACE ===== ProjeQtOr actual Version = V9.0.0
2020-12-25 10:26:35.960 ===== TRACE =====
2020-12-25 10:26:35.961 ===== TRACE ===== =====================================
2020-12-25 10:26:35.962 ===== TRACE =====
2020-12-25 10:26:35.962 ===== TRACE ===== VERSION V9.0.0
2020-12-25 10:26:35.963 ===== TRACE =====
2020-12-25 10:26:39.570 ===== TRACE ===== Table "navigation" created.
2020-12-25 10:26:39.678 ===== TRACE ===== 283 lines inserted into table "navigation".
2020-12-25 10:26:39.834 ===== TRACE ===== 10 lines updated into table "navigation".
2020-12-25 10:26:40.077 ===== TRACE ===== Table "menucustom" altered.
2020-12-25 10:26:40.314 ===== TRACE ===== 1 lines inserted into table "parameter".
2020-12-25 10:26:40.374 ===== TRACE ===== 52 lines inserted into table "parameter".
2020-12-25 10:26:40.402 ===== TRACE ===== Table "notification" altered.
2020-12-25 10:26:40.458 ===== TRACE ===== 2 lines updated into table "habilitationother".
2020-12-25 10:26:40.501 ===== TRACE ===== 1 lines inserted into table "originable".
2020-12-25 10:26:40.568 ===== TRACE ===== Table "milestone" altered.
2020-12-25 10:26:40.568 ===== TRACE =====
2020-12-25 10:26:40.569 ===== TRACE ===== DATABASE UPDATED
2020-12-25 10:26:40.569 ===== TRACE ===== WITH NO ERROR
2020-12-25 10:26:40.569 ===== TRACE =====
2020-12-25 10:26:47.614 ===== TRACE ===== Cron normally stopped at 25/12/2020 10:26:47
2020-12-25 10:26:53.739 ===== TRACE ===== =====================================
2020-12-25 10:26:53.739 ===== TRACE =====
2020-12-25 10:26:53.739 ===== TRACE ===== DATABASE UPDATE COMPLETED TO VERSION V9.0.0
2020-12-25 10:26:53.739 ===== TRACE =====
2020-12-25 10:26:53.739 ===== TRACE ===== =====================================
2020-12-25 10:26:53.739 ===== TRACE =====
2020-12-25 10:26:57.951 ===== TRACE ===== NEW CONNECTED USER 'admin'
2020-12-25 10:27:13.209 ===== TRACE ===== Cron started at 25/12/2020 10:27:13
2020-12-25 10:31:09.708 ===== TRACE ===== NEW CONNECTED USER 'qhvkuhsvi'
2020-12-25 10:33:44.868 ** ERROR ** [V9.0.0] attachmentRefId parameter not found in REQUEST
2020-12-25 10:39:39.996 ===== TRACE ===== purgeFiles('../files/thumbs/Affectable_3', '') - directory '../files/thumbs/Affectable_3' does not exist

Hi,
Issue recorded as Ticekt #5132

Thanks for reporting the issue.

Hi,

Not retreiving photo after migration possibly comes from migration process.
You must "overwrite" existing code, not install new instance and copy DB, this may loose all attachments, including photos, if you don'yt copy directories.

Hello @babynus,
This how I've always done to upgrade ProjeQtor.
1) Download ProjeQtor pakage,
2) Unzip it,
3) Rename the projeqtor directory to htdocs,
4) make a new tarball of this dir,
5) Go to my website directory and untar the htdocs.tgz over the htdocs directory.
It always worked. It could leave unused and replaced files in place that are no more used and could lead to a security problem, but it works.
If there is a better way, please tell me.