In case, if there are any mixture of languages (date in one language, and object name is in another/ some options in one language and some is in another/ "dd/mm/yyyy" format is incorrect), please check the settings according to this list:
1) If you work in browser, needful language should be set in browser settings:
2) Both in browser and in desktop application when mixture of languages appears in print forms:
Go to Administration - Service settings - open a date format for print forms:
And set the needful language:
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