zotero 4 sync not supported any more
I use zotero 4.0.29.10 on a old Red Hat Enterprise Linux 6.7. Since this is a department computer where I have no privilege to update the operating system, I have to use the old version for now, as zotero 5.x has missing dependency on Red Hat Enterprise Linux 6. However, zotero 4 synchronization is recently stopped. Is there anyway I can either get zotero 4 sync to work, or to make zotero 5 work on my Linux distro?
XPCOMGlueLoad error for file /home/zcx/Program/zotero/5.0.55/libxul.so:
/usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by /home/zcx/Program/zotero/5.0.55/libxul.so)