Old Version after editing elements.data

[origamaster]

Hi everyone, i need some help, i have created a server and it is almost done, the only thing i need help is the EXP needed for each level, for some reason, this server came with 0/1 exp needed on all levels, i started searching on the client and on the server where to change this, and i found a parameter in elements.data on line 078 (Player experience curve) it has all the levels from 1 to 150 and the value 1 next to it, so i searched the pw default exp table for all levels and changed this parameters, after changing it, i saved my new edited elements.data and overwrited the elements.data on the client and on the server, but when i reloaded the server and tried to start the game it returned that old "your client version is too old" error, anyone have any ideas on how to correct it ? i will leave some print screens below.

OBS : for the record, it is a 1.5.0 server.

[MentaL]

[HyperSin]

The needed exp is in elements.data

[origamaster]

The needed exp is in elements.data

I know man, but when i try to edit it and change the values, after overwriting the elements.data on the client and on the Server and try to log in to te game it returns the error "your client version is too low, ok esse update it" :/ that's my issue, i need help on solving this.