I did not connect iota wallet since a long time (august i think).
Ok, then your IOTA have most likely been sent to an IOTA Foundation controlled address. Make sure you correctly finished the reclaim process (there are/were two phases) and then wait for your funds to be sent to your new seed. You can find some further explanation on the reclaim process in these two blog posts. Please read these carefully:
https://blog.iota.org/gui-v2-5-2-latest-release-with-iota-reclaim-tool-32d364d6241a
https://blog.iota.org/gui-wallet-phase-two-of-the-reclaim-process-f5913109cf46