since a few commits ago those message appear in the client console:
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "@1 cannot be repaired with an anvil."
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "@1's anvil"
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "A tool for repairing other tools in conjunction with a blacksmith's hammer."
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "Right-click on this anvil with a damaged tool to place the damaged tool upon it. You can then repair the damaged tool by striking it with a blacksmith's hammer. Repeated blows may be necessary to fully repair a badly worn to
2020-03-19 21:42:42: ERROR[Main]: ol. To retrieve the tool either punch or right-click the anvil with an empty hand."
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "Steel blacksmithing hammer"
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "Use this hammer to strike blows upon an anvil bearing a damaged tool and you can repair it. It can also be used for smashing stone, but it is not well suited to this task."
2020-03-19 21:42:42: ERROR[Main]: Ignoring empty translation for "Your @1 has been repaired successfully."
since a few commits ago those message appear in the client console: