Not able to change any settings in Configuration | Error ValueError: Invalid field 'is_installed_sale' on model 'res.config.settings'
The sales Module is installed and we have 1 custom module of Contracts which is also installed and working fine. Now I am ticking the checkbox of Lot/Serials in inventory configuration so getting this error. In-fact I cannot do any changes in configuration each time this error is rising
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I have a similar problem and I posted my question, still haven't got an answer
https://www.odoo.com/forum/help-1/valueerror-invalid-field-module-l10n-fr-hr-payroll-on-model-res-config-settings-200818