Import demo fails from the beginning

Hello,

I try to import a demo and i get an error with the following log.
Any chace for help please…

[28/Feb/2020:21:53:56] (??): WordPress Instance Info:
[28/Feb/2020:21:53:56] (??): Home URL : https://supplies.dev.uoi.gr
[28/Feb/2020:21:53:56] (??): Site URL : https://supplies.dev.uoi.gr
[28/Feb/2020:21:53:56] (??): WordPress Version : 5.3.2
[28/Feb/2020:21:53:56] (??): Onboarding Version : 1.8.2
[28/Feb/2020:21:53:56] (??): Multisite : No
[28/Feb/2020:21:53:56] (??): Server Info : LiteSpeed
[28/Feb/2020:21:53:56] (??): PHP Version : 7.3.15
[28/Feb/2020:21:53:56] (??): HTTPS : Yes
[28/Feb/2020:21:53:56] (??): PHP Max Execution Time : 300
[28/Feb/2020:21:53:56] (??): PHP Max Input Vars : 5000
[28/Feb/2020:21:53:56] (??): Max Upload Size : 67108864
[28/Feb/2020:21:53:56] (??): Plugins:
[28/Feb/2020:21:53:56] (??): [PLUGIN] ManageWP – Worker : v4.9.3 (GoDaddy)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Clean Image Filenames : v1.2.1 (Upperdog)
[28/Feb/2020:21:53:56] (??): [PLUGIN] GDPR Cookie Consent : v1.8.5 (WebToffee)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Enhanced Media Library : v2.7.2 (wpUXsolutions)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Fluent Forms – Best Form Plugin for WordPress : v3.2.0 (WP Fluent Forms)
[28/Feb/2020:21:53:56] (??): [PLUGIN] greeklish-permalinks : v3.1 (Panagiotis Kontogiannis)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Paste as Plain Text : v1.0.1 (Till Krüss)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Remove Uppercase Accents : v0.5 (Giorgos Sarigiannidis)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Webcraftic Robin image optimizer : v1.4.2 (Webcraftic )
[28/Feb/2020:21:53:56] (??): [PLUGIN] Rank Math SEO : v1.0.39.1 (Rank Math)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Simple History : v2.33.2 (P?r Thernstr?m)
[28/Feb/2020:21:53:56] (??): [PLUGIN] TinyMCE Advanced : v5.3.0 (Andrew Ozz)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Toolset Blocks : v1.1.2 (OnTheGoSystems)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Toolset Module Manager : v1.8.6 (OnTheGoSystems)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Toolset Types : v3.3.10 (OnTheGoSystems)
[28/Feb/2020:21:53:56] (??): [PLUGIN] UpdraftPlus – Backup/Restore : v1.16.22 (UpdraftPlus.Com, DavidAnderson)
[28/Feb/2020:21:53:56] (??): [PLUGIN] Wordfence Security : v7.4.6 (Wordfence)
[28/Feb/2020:21:53:56] (??): [PLUGIN] WP Mail SMTP : v1.8.1 (WPForms)