Thank you for your feedback.
For the second point, I tried to reopen the project, to look for the parent, but I didn't find one.
INSERT INTO `qtor_project` (`id`, `name`, `description`, `idClient`, `projectCode`, `contractCode`, `color`, `idProject`, `idle`, `idUser`, `done`, `idleDate`, `doneDate`, `idContact`, `sortOrder`, `idProjectType`, `codeType`, `idRecipient`, `paymentDelay`, `longitude`, `latitude`, `idStatus`, `idHealth`, `fixPlanning`, `clientCode`, `idOverallProgress`, `cancelled`, `idQuality`, `idTrend`, `idSponsor`, `creationDate`, `objectives`, `idResource`, `isUnderConstruction`, `lastUpdateDateTime`, `idOrganization`, `organizationInherited`, `organizationElementary`, `idCategory`, `handled`, `handledDate`, `excludeFromGlobalPlanning`, `fixPerimeter`, `isLeaveMngProject`, `commandOnValidWork`, `allowReduction`, `paused`, `startAM`, `endAM`, `startPM`, `endPM`, `idCatalogUO`, `strength`, `weakness`, `opportunity`, `threats`, `strategicvalue`, `idRiskLevel`, `benefitValue`) VALUES
(3, 'Cardechange', '<div>Remplacer le produit <span class=\"scayt-misspell-word\">PositivID</span> à la PL</div>', 2, '20-0040', NULL, NULL, NULL, 1, 3, 1, '2022-09-23', '2022-09-23', NULL, '00002', 48, 'OPE', NULL, NULL, '0.000000000000', '0.000000000000', 7, 2, 0, NULL, 7, 0, 1, 2, NULL, '2020-11-29', '<div>Remplacer le produit <span class=\"scayt-misspell-word\">PositivID</span> à la PL</div>', 3, 0, '2022-09-23 11:18:41', 19, 0, 0, NULL, 1, '2022-09-23', 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL),
INSERT INTO `qtor_activity` (`id`, `idProject`, `idActivityType`, `name`, `description`, `creationDate`, `idUser`, `idStatus`, `idResource`, `result`, `comment`, `idle`, `idActivity`, `done`, `idleDate`, `doneDate`, `handled`, `handledDate`, `idVersion`, `reference`, `externalReference`, `idContact`, `cancelled`, `idComponent`, `idProduct`, `isPlanningActivity`, `lastUpdateDateTime`, `idComponentVersion`, `idMilestone`, `fixPlanning`, `paused`, `workOnRealTime`) VALUES
(3, 3, 26, 'Création d\'un serveur', NULL, '2020-11-29', 3, 7, 9, '<div>Serveur : cardexchange01</div>', NULL, 1, 6, 1, '2020-11-29', '2020-10-30', 1, '2020-10-26', NULL, '20-00400001', NULL, 3, 0, NULL, NULL, 0, '2022-04-02 15:27:10', NULL, NULL, 0, 0, 0),
(4, 3, 26, 'Installer SQLexpress', NULL, '2020-11-29', 3, 7, 3, '<div>Installé avec Chokri</div>', NULL, 1, NULL, 1, '2020-11-29', '2020-11-05', 1, '2020-11-05', NULL, '20-00400002', NULL, 16, 0, NULL, NULL, 0, '2022-04-02 15:27:10', NULL, NULL, 0, 0, 0),
(5, 3, 26, 'Valider l\'offre', '<div>Après les tests, l'offre sera validée pour la mise en production</div>', '2020-11-29', 3, 7, 3, '<div>L'offre a été signé, produit commandé</div>', NULL, 1, 6, 1, '2020-11-29', '2020-11-06', 1, '2020-11-03', NULL, '20-00400003', NULL, 16, 0, NULL, NULL, 0, '2022-04-02 15:27:10', NULL, NULL, 0, 0, 0),
(6, 3, 26, 'Test sur VDI', NULL, '2020-11-29', 3, 7, 3, '<div>L'application virtualisée fonctionne sur les VDI</div>\n\n<div>Le serveur de licence avec le client servira à la mise en production</div>', NULL, 1, NULL, 1, '2020-11-27', '2020-11-29', 1, '2020-11-29', NULL, '20-00400004', NULL, NULL, 0, NULL, NULL, 0, '2022-04-02 15:27:11', NULL, NULL, 0, 0, 0),
(8, 3, 22, 'Mise en production', NULL, '2020-11-29', 3, 7, 3, '<div>Toutes les tâches ont été faites</div>', NULL, 1, NULL, 1, '2020-11-29', '2020-11-29', 1, '2020-11-16', NULL, '20-00400005', NULL, 16, 0, NULL, NULL, 0, '2022-04-02 15:27:11', NULL, NULL, 0, 0, 0),
(9, 3, 26, 'Formation', NULL, '2020-11-29', 3, 7, 3, '<div>Formation effectuer par M. Bucher</div>', NULL, 1, 8, 1, '2020-11-29', '2020-11-29', 1, '2020-11-29', NULL, '20-00400006', NULL, NULL, 0, NULL, NULL, 0, '2022-04-02 15:27:11', NULL, NULL, 0, 0, 0),